VPN Troubleshooting Guide

Establish a troubleshooting baseline: reproduce the issue before changing settings

Turn “it does not work” into a verifiable symptom

The most time-consuming part of troubleshooting is often not the technology itself, but an overly vague description. “I cannot connect,” “it is very laggy,” and “websites do not work” lack the conditions needed to judge what is happening. Before you begin, rewrite the symptom as a repeatable statement: after clicking Connect, does the client remain stuck on Connecting, or does it show Connected while websites remain inaccessible? Do all websites fail, or only one app? Are every route slow, or only routes in one region? Does the issue occur only on the current network, or does it persist after switching networks? The more specific the description, the shorter the next troubleshooting path.

Next, keep the test targets fixed. Choose one ordinary webpage, one frequently used app, and one specific target service for comparison, and do not change the content every time you test. A browser may retain cached data, an app may reuse an existing connection, and the target site may be undergoing temporary maintenance, so one result cannot prove that a route is faulty. A more reliable approach is to use the same device, network, and route to perform the same action repeatedly, while noting whether the failure occurs before the connection is established, during domain resolution, or while content is loading.

Confirm the local network before checking the accelerated path

After disconnecting the client, first confirm that the current network can open commonly used local websites. If the underlying network is unavailable, the VPN client has no usable connection to carry traffic, and switching routes will not solve the problem. Public networks may also require browser-based authentication; the sign-in page often appears only after the proxy is temporarily disconnected. Complete authentication, then reconnect the client. Company, campus, and hotel networks may restrict certain connection methods. In that case, testing on another trusted network is more useful than repeatedly reinstalling the client.

Once the basic network is working, check the device clock and time zone. An incorrect clock can affect encrypted handshakes, certificate validation, and login sessions, making a route appear offline. Let the system synchronize the time automatically, then fully quit and reopen the client. “Fully quit” means confirming that the background process has also ended, not merely closing the window. If the client remains in an old state, a change in the interface switch does not necessarily mean that the connection core has reloaded.

Keep a short troubleshooting record

You do not need a complex spreadsheet. Record the device platform, network type, client status, route name, failed target, error message, and approximate time when the service last worked normally. Do not capture only the error popup; keep the client’s main screen and the system network status as well. If the issue occurs only in a specific app, note whether that app has its own proxy, acceleration, private DNS, or network protection enabled, since these settings may override the system proxy.

Also distinguish a configuration issue from a service capacity issue. A configuration issue usually changes immediately after switching networks, restarting the client, or correcting a system setting. A capacity issue is more likely to depend on route selection, target region, and time of day. VPNIJ covers 120+ countries and 210+ routes, so cross-check different regions or route types first instead of repeatedly clicking among similar routes. See the Servers and Routes page for complete coverage information.

By the end of this section, you should be able to answer three questions: Can the issue be reproduced consistently? Does it affect all traffic or only part of it? Does the symptom change after switching networks or routes? Once these answers are clear, you can go straight to the relevant branch instead of testing every setting from the beginning.

Cannot connect at all: check permissions, subscriptions, and routes layer by layer

See which stage the client is stuck at

If nothing changes after you click Connect, start by checking client permissions and background status. If it remains on “Connecting” for a long time, the issue is more likely related to the handshake, network restrictions, or an unreachable route. If an authentication error appears immediately, first check whether the subscription loaded correctly and whether the account is valid. Do not treat these symptoms as the same problem. The exact error text matters; even if you do not understand it, preserve it verbatim rather than paraphrasing from memory and losing key fields.

On Windows and macOS, the system may ask you to allow the client to add a network configuration or enable a system extension. After permission is denied, the client may still open normally while the connection core cannot take control of traffic. Reopen the system’s network, privacy, or security settings and confirm that the relevant permission is allowed. On Linux, check how the client is launched and whether it has network-management permissions. If it can change only its interface settings but cannot write system routes, the connection will fail during setup. Do not run every program with elevated privileges; grant only the permissions the client requires.

Confirm that the subscription is loaded into the active configuration

A successful subscription import does not mean that it is currently in use. Many clients retain local configurations, old subscriptions, and new subscriptions at the same time, while the Connect button may still point to a previously selected configuration group. Open the configuration or subscription page, confirm that the VPNIJ subscription is enabled, and check whether the route list has appeared. If the list is empty, the update time looks wrong, or the name is still an old configuration, resolve the subscription update first instead of continuing to test the connection. Obtain the subscription and client through the user panel; marketing pages do not provide static installers or real subscription URLs.

When testing the configuration format, you can use an obviously fake address to check the input field and import flow, but it will not produce usable routes:

https://example.com/sub?token=YOUR_TOKEN

If the client recognizes the fake address as a subscription input but returns an error when updating the real subscription, the issue is likely related to the login session, copied content, the subscription request, or client compatibility. If the input field does not accept a link at all, you may have chosen the wrong entry point, such as “Import file” or “Add node manually.” Return to the Quick Start Guide and verify the import path for your platform.

Cross-check with routes in different regions

After confirming that the configuration has loaded, test another route in a different region. The regional difference matters because several routes in the same region may use similar local network exits; switching only among them cannot rule out a path issue between your current network and that region. Disconnect first and wait until the client status has fully returned to idle, then select another region and reconnect. Rapidly clicking the switch can leave an unfinished connection process that affects the new test.

If one route connects, the client permissions, subscription, and basic connection mechanism are generally working; the issue is concentrated in route selection or the path from the current network to a particular region. If every region fails, switch the underlying network for comparison. Failure on the original network but success on an alternative network points to the local network environment. Only when different networks all fail should you continue checking the client core, leftover system proxy settings, and subscription status.

Remove conflicts before reinstalling

Running several tools that modify routes, the system proxy, or network filtering rules on the same device can cause port and routing conflicts. Quit other network tools, browser proxy extensions, and software with network protection features, then restart the VPNIJ client. Closing a window may not be enough; confirm that the tools are no longer running in the menu bar, task area, or background processes. Then check whether the system proxy still points to a closed legacy program. If it does, restore it to automatic or disabled mode so the current client can take control again.

Reinstallation should come later. Before reinstalling, export your troubleshooting record and confirm that the user panel can provide the client and subscription again. Deleting the app directly may leave system network settings behind or remove useful error records. A safer order is to quit conflicting tools, restart the client, restart the device, reload the subscription, and only then consider reinstalling. If every network and route still stops at the same error stage after reinstallation, submit a support ticket with the platform, network environment, exact error text, route name, and troubleshooting steps already completed.

State the result clearly: if only some routes fail, move to the route-selection and speed sections; if the client shows Connected but content is inaccessible, move to DNS and system proxy; if the client cannot load any subscription, move to the account and subscription section. Do not loop endlessly in the “cannot connect at all” branch.

Connected but websites will not open: check system proxy and DNS issues

First distinguish domain resolution failure from connection failure

A client showing Connected proves only that the tunnel or proxy core has started. It does not mean that the browser, DNS, and target service are correctly using that path. First open a webpage that is normally reliable, then try requesting a specific HTTPS address directly. If the browser says that the domain cannot be found, the name cannot be resolved, or there is a DNS error, check resolution first. If the domain resolves but the connection times out, look more closely at the system proxy, routing, or target service. If only one browser fails, check that browser’s own proxy and secure DNS settings.

You can use built-in system commands to check whether a domain responds. The example domain is only for checking command syntax and is not a VPNIJ service address:

nslookup example.com
curl -I https://example.com

If nslookup returns a resolution result but the browser still cannot open the page, do not keep changing only DNS settings. Check whether the browser is using the current system proxy, whether it has retained an old connection, and whether security software is filtering browser traffic separately. If the resolution command itself fails, then address the DNS cache, network interface, and client DNS mode. Preserve the complete command output; it is more useful for a support ticket than a cropped popup.

Check whether the system proxy points to the active client

Some clients use system-proxy mode, in which apps must read the operating system’s proxy settings. Other modes take over system routing. If the client has changed modes, an old system proxy address may remain, causing every webpage to time out after connection and preventing recovery even after the client exits. Open the system network settings and confirm that the proxy is managed by the active client. Do not manually copy a local address from the client interface into multiple locations unless the relevant documentation explicitly requires it; manual settings are most likely to break when the port changes or the client restarts.

Browser extensions are another common source of conflicts. An extension may override the system proxy or send only browser traffic through a different rule set. Temporarily disable such extensions and test in a normal browser window; do not rely solely on a session with complex extension state. If the normal window works, restore extensions one at a time. If every browser fails while other apps work, check secure DNS, proxy extensions, and cache. If every app fails, return to the system proxy and client mode.

Clear DNS cache and incorrect interface bindings

A device may retain DNS cache entries from different network environments before and after connection. After switching routes, the browser or system may reuse old resolution results, causing some websites to remain inaccessible, regional content not to change, or the same domain to work intermittently. Fully quit the browser, disconnect and reconnect the client, and let the system rebuild the network interface. If necessary, use the system’s built-in network diagnostics or DNS refresh function. Avoid copying long commands from unfamiliar guides to modify the registry, network services, or system files.

If the device has wired networking, Wi-Fi, a virtual adapter, or another tunnel interface enabled at the same time, DNS requests may be sent through the wrong interface. The simplest test is not to delete interfaces, but to temporarily disable connections you do not need and leave only the active basic network and the interface created by the VPNIJ client. Re-enable them one at a time afterward. This identifies the source of the conflict and makes rollback easy. Resetting the entire network would remove more configuration and should not be the first step.

Check the target service and region when failure is limited

A website that will not open does not by itself prove that the entire connection has failed. The target service may require a specific region, reject the current session, or retain a previous region in a browser cookie. Open other ordinary webpages on the same route, then switch to another region for comparison. If ordinary webpages remain stable while only the target service fails, the issue has narrowed from “the network is unavailable” to “the target service and exit region do not match.” Check the route region on the Servers page instead of changing system DNS again.

An app’s built-in secure DNS, private resolution, or network protection options may also bypass system settings. Temporarily restore the app’s default network behavior, restart it, and test again. If the default works, re-enable features one at a time as needed. Do not specify different resolution strategies in the client, system, and browser simultaneously. Multiple layers do not automatically produce a more stable result; they make the request path harder to understand.

Ultimately, classify the issue clearly: leftover system proxy settings, browser overrides, DNS cache, interface conflicts, a route-region mismatch, or an issue with the target service itself. If the same domain is the only failure after switching networks, routes, and browsers, include the domain, time, route name, exact browser error, and command output in the ticket. Do not submit your password or complete subscription content.

Slow speeds and peak-hour congestion: identify the bottleneck

Speed is not a fixed attribute displayed next to a route name

A cross-border connection consists of the local device, home or public network, local carrier path, relay path, exit region, and target service. Congestion at any point appears to the user as “slow.” A single download, video, or website load time therefore cannot represent route quality on its own. Keep the device and test content the same: test the basic network with the client disconnected, reconnect and test again, then switch to routes in different regions. Only then can you tell whether the bottleneck follows the route.

Before testing, stop background sync, system updates, cloud transfers, and high-bandwidth tasks on other devices. VPNIJ supports unlimited devices, but “unlimited devices” does not increase the capacity of your local broadband connection or subscription data. When several devices download at once, they share the available network capacity and subscription data. If speeds drop only when other devices are busy, address local contention first rather than blaming the remote route.

Judge performance by real use cases, not one speed-test page

A speed-test page usually selects its own test servers, which may be on a different network from the website you actually need. A more practical assessment is to observe real tasks: can ordinary webpages open continuously, do long-lived connections remain stable, does video repeatedly drop in quality, and does file transfer stay sustained instead of briefly spiking and then falling to zero? Keep the test target consistent; differences in content size, cache state, and server limits can otherwise conceal route differences.

Browser cache can also mislead you. The first visit downloads all resources, while later visits may read them locally and make the route seem suddenly faster. Use a private window or clear the cache for a specific site, but do not clear the entire browser every round. For app testing, fully quit and reopen the app to avoid reusing an old connection. If webpages work on one route but large files remain slow, the issue may be path throughput or a target-service limit. If every task pauses for long periods, packet loss, an unstable basic network, or route congestion is more likely.

Compare regions and networks during peak hours

Peak-hour congestion requires separating local access congestion from congestion on the cross-border path. During the affected period, disconnect the client and see whether local webpages and ordinary downloads also fluctuate. If the basic network slows at the same time, check the home router, wireless interference, and local network first. If the basic network is stable but routes to a specific region deteriorate, switch to another region or route type. Do not switch only among similarly named routes, since they may share similar paths.

If the same route recovers after changing the basic network, the issue is more likely on the path from the original network to that route. If that route is slow on different networks while other regions work normally, focus on the route or target region. If every route is slow only for one service, consider the target service’s regional capacity, account region, or differences in the content source. Record the results this way so support can reproduce the issue instead of receiving an unhelpful “it is very laggy at night.”

Do not skip the wireless environment and device load

Being far from the router, dense nearby wireless networks, and heavy system load can all make an encrypted connection perform worse. Encryption, routing, and transfer require continuous device processing, so performance fluctuations on older devices or in power-saving mode directly affect throughput. Close unnecessary background programs, connect reliable power, use a more dependable local network, and then compare routes again. If other devices work normally on the same network, the issue is more likely local to the current device. If every device slows at the same time, check the network and route upstream.

When choosing a route, do not optimize only for geographic distance. A nearby region often has a shorter path, but actual quality still depends on the current network and target service. VPNIJ offers 120+ countries and 210+ routes, making it practical to run a small number of real-world comparisons and keep the routes that remain stable. Frequent automatic switching changes the exit and session; some apps may then require another login or a new connection.

If the issue follows a clear time-of-day pattern, keep the same test record for both normal and affected periods. Include the network type, route name, target service, whether the basic network worked, and comparison results from different regions in the ticket. Do not attach only a speed-test screenshot; path diagnosis needs a reproducible scenario and clear conditions that changed.

Frequent disconnections and mobile background dropouts

First determine whether the tunnel disconnected or the app session was reset

An app reloading does not necessarily mean that the VPN tunnel disconnected. On mobile devices, the system may pause background apps when the screen is locked, power saving is active, the network changes, or memory is low. When brought back to the foreground, the target app may establish its own connection again. Check the client status at the same time: if VPNIJ still shows Connected and ordinary webpages open while only the target app asks you to sign in again, the issue is more likely an app session. If the client itself returns to Disconnected, investigate tunnel drops.

Also watch for switching between Wi-Fi and mobile networks. Leaving Wi-Fi coverage, fluctuating network quality, or the system automatically selecting another connection can change the underlying address and require the tunnel to be rebuilt. A brief reconnect is expected after a network change. If the connection repeatedly drops while the device is stationary and the network is stable, check power-saving rules, background permissions, client mode, and route stability.

Allow the client to keep running on mobile

On iOS and Android, the system manages processes based on battery level, background activity, and app usage. Confirm that the VPN configuration is allowed, and avoid placing the client under strict background restrictions. Android interfaces vary considerably; the relevant options may appear under battery, app management, background activity, or auto-start. The goal is not to disable all system protections, but to let the VPNIJ client retain the background capability it needs while connected.

If disconnections occur only after the screen locks, keep the screen on for one comparison round. Stable performance with the screen on and interruptions after locking point first to background restrictions or power saving, not necessarily to the route. If it also disconnects in the foreground, switch networks and routes. On iOS, if the system repeatedly asks you to add or enable a configuration, confirm that only the required VPN configuration is active so an old configuration does not compete with the current client. On Android, temporarily quit other network-protection apps for comparison.

On desktop, check sleep, network changes, and process status

After sleep and wake on Windows, macOS, and Linux, network interfaces may be initialized again. The client interface may still show an old state even though the connection has failed. When this happens, disconnect deliberately and reconnect instead of immediately switching routes repeatedly. If manual recovery is needed after every wake-up, check whether the system allows the client to run after login and whether the network is rebuilt correctly after sleep.

Frequent disconnections can also result when multiple clients take control of the system proxy or routes. Close other network tools and confirm that the system proxy does not point to an exited process. If the connection consistently fails after a certain period, record whether the device changed networks, entered sleep, started a large download, or began a system update beforehand. The associated action is more diagnostically useful than simply saying “it disconnects after running for a while.”

Narrow the disconnection scope by changing one variable at a time

Keep the same device and route while switching to another basic network. Then keep the device and network unchanged while testing a route in another region. If disconnections follow the basic network, check the router, network authentication, and wireless stability. If they follow only one route, note its name and test other regions. If every network and route fails only on the current device, check system permissions, background policies, and client status. If several devices disconnect simultaneously on the same network, the local network or upstream path is more likely responsible.

VPNIJ supports unlimited devices online at the same time, so normal multi-device use should not be treated as a device-count limit. However, sustained transfers across several devices still compete for local resources and subscription data. When troubleshooting disconnections, pause high-load tasks on other devices and check whether congestion is simply slowing the connection until it times out. Also check the plan status and data record in the user panel.

When to submit a disconnection ticket

Submit a ticket when the issue can be reproduced consistently across different networks and regional routes, and the client clearly changes from Connected to Disconnected. Include the device platform, exact client error, route name, basic network type, whether the device was locked or asleep when the drop occurred, and what it was doing beforehand. If the issue occurs only after locking the screen, state whether foreground use is stable. If it occurs only during a network change, note the direction of the change and whether the connection recovers automatically.

Do not send your account password, complete subscription content, or screenshots containing access credentials. Check logs for sensitive fields before sharing them, and provide only connection status and error information around the failure time. With complete information, support can determine whether the session was terminated by the system, the route connection dropped, or the local network changed, avoiding repeated questions.

Subscription update failures and account-status troubleshooting

Confirm login, plan, and subscription source first

When a subscription update fails, do not start by clicking Update repeatedly. Sign in to the user panel and confirm the account and plan status. VPNIJ does not require an email address; a username and password are enough to create an account. If the username is forgotten, the password is incorrect, or the login session has expired, an old subscription may remain in the client but cannot retrieve a new configuration. First confirm that you can access the account normally, then obtain the current content from the download or subscription section.

Plans are divided into monthly subscriptions and data packages. Monthly subscriptions are ¥9.9/month with 60GB, ¥18/month with 250GB, and ¥28/month with 500GB. Data resets monthly on the activation date, and a mid-cycle upgrade difference is converted into remaining days. Data packages are ¥158/300GB, ¥358/1000GB, and ¥658/3000GB; they remain valid until used and never expire. Confirm which type of plan is active, whether its status is valid, and whether data remains available instead of relying only on a route name left in the client.

Distinguish copy errors, request failures, and parsing failures

A subscription update has three stages: the client obtains the subscription URL, sends a request to it, and parses the returned configuration. If the address is incomplete, the client usually reports a format or request error immediately. If the network cannot reach the subscription endpoint, you may see a timeout, connection failure, or status error. If the content is returned but the client is incompatible, it may report a parsing failure, an empty configuration, or an invalid field. Each stage requires a different fix.

When copying the subscription again, use the full copy action in the user panel. Do not select part of the text manually, and do not send the link through a service that may truncate or rewrite it. Check for extra spaces, line breaks, or punctuation at either end. Never show the complete subscription content in a ticket, public page, or screenshot. If you need to describe the issue, include only the error message and the beginning of the address with sensitive parts masked.

If the client offers both “Update subscription” and “Re-import,” try updating first. If the update still points to an old configuration, delete the corresponding inactive entry and import it again. Before deleting anything, confirm that the user panel can provide the subscription again so you do not remove the only usable configuration. Do not delete all client settings to fix one subscription unless you have made a backup and confirmed that other troubleshooting steps failed.

The subscription updates, but the route list does not change

This usually relates to cache, an active configuration that was never switched, or a client that has not reloaded. After updating, check the subscription update time and route list, and confirm that the selected configuration group is VPNIJ. Disconnect, fully quit the client, and reopen it. If the client supports multiple configuration files, check which one is marked active instead of merely checking that the subscription name exists. If routes are listed but cannot connect, return to the “Cannot connect at all” section rather than repeatedly clicking Update.

Some clients mix subscription groups with manually added local routes. Updating affects the subscription group but does not replace manual entries. If the connection page still selects an old local configuration, a successful update will not change the actual path. Trace the configuration source through to the active route: which group contains the subscription, whether the group is enabled, which route is selected on the connection page, and which client controls the system proxy. Test only after this chain is consistent.

Assess payment status separately from connection status

VPNIJ supports Alipay, WeChat Pay, and USDT. If the order or plan status in the panel does not update as expected after payment, keep the order details from the payment channel and submit a ticket through the user panel. Do not create multiple identical orders to test the system, and do not use repeated subscription imports to determine whether payment succeeded. Payment and configuration are separate layers: the panel shows account entitlements, while the client reads the subscription. Confirm each independently.

After a plan upgrade, use the current status shown in the user panel as the source of truth. A mid-cycle upgrade difference is converted into remaining days; do not calculate the validity period yourself from data or price. If the displayed information differs from what you expected, include the plan names before and after the upgrade, the operation time, and the order status in the ticket for support to verify. Prices and rules can be confirmed on the Plans page.

What to include in an update-failure ticket

Provide the device platform, the client page where the issue occurred, the update action, the exact error text, whether the subscription ever worked normally, the plan status in the user panel, and whether the result changed after switching networks. If the client returns a status code, include it verbatim, but do not include the complete subscription URL. If the issue occurred after copying, state whether you used “Update” or “Re-import.” If the update succeeded but the list is empty, attach a screenshot of the configuration page with sensitive fields masked.

If the user panel itself cannot open, test ordinary webpages and another network first. If the panel works but the client update fails, focus on the client entry point, network request, and parsing. If the update completes and routes appear but cannot connect, return to the connection section. Identifying the exact stage where the issue stops is usually faster than reinstalling the client.

A single app is not using the proxy: check app routing and connection cache

Prove that other traffic is working first

When one app fails, first open an ordinary webpage in a browser and then test another networked app. If other traffic is stable, the client, subscription, and route can at least carry some requests, so focus on the app itself, routing rules, and connection method rather than asking whether the route is online. If every app fails, return to the system proxy and DNS sections instead of investigating one app’s settings further.

Also distinguish between “the app is not using the proxy” and “the app is using the proxy but the target service rejects the current session.” The first often appears as an unchanged exit region, requests that continue to use the local path, or only the browser working. The second may appear as an unavailable region, an invalid login session, or a content list that does not refresh. Page messages alone are not enough; switch routes, fully quit the app, and compare the same service in a browser.

Understand system proxy, global takeover, and rule-based routing

In system-proxy mode, only apps that follow the operating system’s proxy settings automatically use the client. Some apps use their own network components and may ignore the system proxy. Global takeover usually covers more traffic, but it can still be affected by system permissions, virtual interfaces, and app-level network policies. Rule-based routing chooses a path based on domains, addresses, or apps; when no rule matches, the target traffic may connect directly.

For troubleshooting, temporarily use the more direct mode provided by the client for comparison. If the app works in direct mode but fails in rule mode, the issue is concentrated in the routing rules rather than the route itself. Check whether the service uses multiple domains, whether content comes from separate resource domains, and whether a broad direct-connection rule is matching before the intended rule. Do not download rule files from unknown sources and overwrite the current configuration; that introduces more unknown conditions.

In-app settings may override the system path

Some browsers, developer tools, download tools, and communication apps allow separate proxy, private DNS, or network-interface settings. In-app settings may take priority over the system proxy, so an old address can cause “other apps work, but this one does not.” Open the app’s network settings, restore the system-following or default behavior, fully quit the app, and restart it. If the default works, configure features one at a time according to your needs.

Browsers may also enable their own secure DNS, developer tools may read environment variables, and command-line programs do not necessarily use the desktop system proxy automatically. Check whether proxy variables remain in the current terminal environment:

printenv | grep -i proxy

If the output points to an old client that has already exited, clear the relevant variable in the current terminal session and restart the command. Do not put a real subscription URL into an environment variable or configuration example. For programs that require explicit proxy parameters, follow the program’s official documentation and the local configuration shown by the current client; do not copy settings from another device.

Clear app connection cache and regional sessions

Apps commonly reuse established long-lived connections. After switching routes, an old connection may continue using the original path until the app restarts or the connection times out. To test correctly, quit the app, confirm that its background process has ended, switch routes, and reopen it. Simply sending the app to the background is usually not enough to clear the connection. If the target service retains regional information through the account, cookies, or local cache, sign out of the current session or clear that service’s site data. There is no need to delete all app data from the device.

If the issue involves AI Tools, read the AI Tools Access Guide to understand the relationship between long-lived connections, login sessions, and regional routes. For route selection in the Midjourney and Discord ecosystem, see the Midjourney and Discord Route Selection Guide. These resources explain app-layer differences and do not replace this section’s basic comparison steps.

Choose the solution path based on the result

If direct takeover works but rule mode fails, check rule matching and app domains. If the browser works but the command line fails, check environment variables and the program’s own proxy support. If switching routes and restarting the app restores service, the issue is likely related to an old connection or regional session. If the same app fails on different devices while other services work, focus on the target service’s status and regional requirements. If only the current device fails, check its app permissions and local configuration.

When submitting a ticket, provide the app name, device platform, client mode, route used, whether other apps work, whether fully restarting the app changed anything, and comparison results from different regions. Do not submit the app account password. If routing rules are involved, provide only the relevant rule fragment with sensitive content masked; do not upload the complete subscription configuration.

When to contact support and how to submit an effective ticket

When to continue troubleshooting yourself

When the symptom changes clearly with the network, route, client mode, or target app settings, completing another comparison round is usually more efficient. For example, recovery after switching networks points to the original network; an issue limited to a particular region can be worked around temporarily by selecting another region and recording the route name; and a failure limited to one browser calls for checking its proxy extensions and connection cache first. These cases already have a clear branch, so there is no need to submit scattered screenshots before the result is stable.

If you have just changed many settings, first return to the most recent working state, then retest according to this guide’s smallest-change principle. Support cannot infer what was done from “I tried everything.” List each action and mark whether the symptom changed afterward. This is far more useful than a general description.

When to submit a ticket directly

Submit a ticket when the same error is consistently reproducible across different basic networks and regional routes, the client clearly reports an authentication, configuration-parsing, or connection-core error, the order or plan status in the user panel does not match the result of an operation, or subscription requests continue to fail despite a valid login session. If payment status needs verification, retain the order details for Alipay, WeChat Pay, or USDT and submit them through the user-panel ticket entry point. Do not make another payment to test it.

VPNIJ provides a 30-day no-questions-asked refund. Follow the Refund Policy for refund rules. Describe technical troubleshooting and refund requests separately rather than mixing route, account, and order issues in one message. To compare plans, see the Plans page; do not calculate remaining days after a mid-cycle upgrade yourself.

Environment details to include in a ticket

A ticket that can be acted on should state whether the device platform is Windows, macOS, iOS, Android, or Linux; the current basic network type; client status; whether the subscription updates; route name; failed target; exact error text; whether the issue is reproducible; and what changed after switching networks and routes. VPNIJ supports these platforms, but permissions, proxy takeover, and background policies differ between them. “Computer” or “mobile” alone is not enough to diagnose the issue.

For a speed issue, state whether the basic network works, whether only a particular region or target service is slow, and whether the issue depends on the time of day. For a disconnection, say whether the device was locked, asleep, or switching networks. For a DNS issue, attach the complete output of the resolution and request commands. For a subscription issue, state whether the failure occurred during copying, requesting, or parsing. Each item can be brief, but it must allow the troubleshooting path to be reconstructed.

Device platform:
Basic network:
Client status:
Subscription status:
Selected route:
Failed target:
Exact error:
Reproduction steps:
Result after switching networks:
Result after switching routes:
Troubleshooting completed:
Assistance needed:

Screenshots, logs, and privacy boundaries

Screenshots should include the complete error message and necessary context, such as client status and route name. Do not capture only an untitled popup, and do not crop multiple images into fragments whose order cannot be determined. Provide only log excerpts around the failure and check them first for usernames, subscription content, access credentials, and other sensitive fields. Account passwords and complete subscription URLs are not troubleshooting materials and are never needed in a ticket.

Provide command output as text or a clear screenshot, avoiding transcription errors from typing it again. If the error involves a target domain, you may provide the domain and error text. If it involves an account order, provide the order status and payment-channel information visible in the user panel. VPNIJ accepts Alipay, WeChat Pay, and USDT; descriptions of other payment methods should not be treated as evidence of a VPNIJ order.

Keep test conditions stable after submitting

After submitting a ticket, you can continue working with another route that has been confirmed to work, but do not keep deleting configurations, resetting the system network, or installing multiple clients. Excessive environmental changes make it difficult to relate support’s diagnosis to the current device. If you must make further changes, add them and the new results to the ticket in clear chronological order.

When support asks you to retest, reuse the original device, network, target service, and route whenever possible, replacing only one variable at a time as requested. If the issue has already recovered, state the last action completed before recovery so support can determine whether the cause was a network change, configuration refresh, or target-service recovery. Once resolved, keep the final working steps so that a similar issue can be approached from the correct layer next time.

The whole guide comes down to one rule: narrow the problem before trying to fix it. For a complete connection failure, check permissions, subscriptions, and the handshake. If connected but content is inaccessible, check the system proxy and DNS. For slow speeds, check the basic network, route, and target service. For frequent disconnections, check network changes and background policies. For subscription failures, check the account, request, and parsing stages. For a single app, check routing and app configuration. Once the boundaries are clear, most issues can be reduced to a verifiable conclusion.