Setting up an Android VPN means connecting the client, subscription, system permissions, and traffic rules. Installing the app doesn’t mean you’re connected, and a VPN icon in the status bar doesn’t mean every app is using an international route. Follow the steps below to identify where a problem occurs instead of repeatedly uninstalling and reinstalling the app.
Before you install: Check the client source and configuration compatibility
Sign in to your VPNWailian account panel and check the download section for Android clients and setup instructions. Use links in the panel or the developer’s official release channel; avoid downloads from chat attachments, repackaging sites, or search ads. VPNWailian accounts don’t require an email address. If you already have an account, go directly to the client download page.
If Android asks you to allow your current browser or file manager to install apps, grant permission only to the source you’re using. After installation, you can return to system settings and disable app installs from that source. If you encounter a signature conflict, don’t delete the existing app right away. First check whether the distribution channel has changed and save any configuration you need; uninstalling may erase local rules and settings.
The client and service subscription need to be compatible. Shadowsocks, VMess, Trojan, and VLESS are different proxy protocols. Hysteria2 and TUIC use QUIC-based transport; they aren’t interchangeable configurations with different names. Import support depends on the client core, its version, and the subscription format provided by the service. A client that “supports VPN” won’t necessarily work with every configuration. This article doesn’t imply that VPNWailian provides all of these protocols; check the account panel for current details.
Import a subscription: Understand links, configurations, and routes
A subscription link is an address for retrieving connection configurations, not an installation package or a website URL. Copy it, then look in the client for an option such as “Subscriptions,” “Configurations,” or “Import from URL.” Paste the link into the appropriate field and update it. Menu names vary by app, so follow the client-specific guide in the account panel.
- Copy the current subscription from the account panel. Make sure you’ve copied the complete link, with no extra spaces, line breaks, or punctuation added by a messaging app.
- Import and update the configuration. Check whether routes or a policy group appear. A subscription name without any routes usually isn’t ready to connect.
- Select the current configuration. Some clients let you save multiple configurations. After importing, you may still need to make the new one active.
- Choose an exit route. Start with a route in the region required by your target service. Avoid adding complex rules during initial setup.
Treat “import failed” and “connection failed” as separate problems. Import failures can result from an expired link, an incompatible format, a network issue retrieving the subscription, or an unexpected response. Connection failures may be related to the selected route, permissions, or local network. Don’t paste a subscription URL into a regular search box to test it, and don’t submit the full link to an unfamiliar conversion site.
Subscription links may contain account credentials, so keep them private. When asking for help, hide link parameters, QR codes, and complete node configurations. If you think a link has been exposed, first check whether the account panel offers a way to reset it, then update the client as instructed. Check the service documentation to find out whether the old link will stop working.
Grant VPN access: Allow the system to connect
The first time you tap Connect, Android usually displays a VPN connection request. Make sure the request is coming from the client you just installed, then allow the connection. This prompt means the app will handle network traffic through Android’s VPN interface. It doesn’t verify service quality or guarantee access to content in any particular region.
In typical use, Android replaces one active VPN connection with another. Work profiles and enterprise policies may behave differently. If another VPN, a VPN-based ad blocker, or a firewall is running, check whether it’s already using the same interface. Don’t start multiple apps at once and mistake them interrupting each other’s connections for a route problem.
For the first test, don’t rush to enable “Always-on VPN” or “Block connections without VPN.” The latter may block network access when the tunnel disconnects. If you don’t understand what it does, you may mistake this expected blocking behavior for a network failure. Confirm that the basic connection works first, then decide whether to enable it.
Battery and background settings: Fix disconnections after locking the screen
If the connection works while the screen is on but fails after you lock it or switch apps, check background restrictions first. Android settings vary by version and manufacturer; common options are under “Battery,” “Background activity,” or “App launch” in the app’s system info. Allow the client to run in the background and, if needed, select “Unrestricted” or an equivalent option.
Some systems also manage auto-start, background data, and data saver settings separately. Allowing background activity may not enable background network access, so check both. Locking the app in the recent-apps view can help keep it available, but it doesn’t replace battery and network settings or guarantee that the system won’t stop the process.
- ✅ Keep the client’s running notification enabled and check that the system hasn’t paused the app or restricted background activity.
- ✅ After locking the screen, reopen the target app and check that the connection still works. Then test whether it recovers after switching between Wi-Fi and mobile data.
- ✅ If the connection only fails after switching networks, reconnect on the new network and note any client error messages.
- ❌ Don’t grant unrelated Contacts, Accessibility, or device-management permissions just to keep the client running.
Needing to reconnect after switching networks isn’t necessarily a battery issue. Route changes, network restrictions, and transport behavior can all affect recovery. First confirm that the current network has internet access, then check whether the client has re-established the tunnel. Don’t rely only on whether the app icon is still in the notification bar.
Traffic rules: Why your browser works but an app doesn’t
Traffic rules determine which requests connect directly and which use a proxy route. Clients may offer rule-based, global, and per-app modes, but their names and behavior vary. Rule-based modes typically route traffic according to domains, addresses, or other conditions. Per-app settings may include only selected apps or exclude them, so read the option carefully.
If a browser works but the target app doesn’t, check whether the app is excluded and whether its domains match a direct-connection rule. To narrow down the cause, temporarily test with the client’s global proxy mode. This may not cover excluded apps or every type of traffic. When you’re done testing, switch back to a routing mode that suits everyday use.
The exit region must also meet the target service’s requirements. Access may depend on your account region, subscription eligibility, device settings, and the service’s own policies. Changing routes only changes some network conditions; it can’t replace account eligibility or guarantee access to a particular content library. Check the region in the route list, then see supported services for usage information.
Verify your connection: Check the exit route, DNS, and apps
Reliable testing includes both an exit-route check and a real-world usage check. Before and after connecting, visit a trusted public IP lookup site and compare the exit address and region with what you expect. If your browser uses a direct-connection rule, an unchanged result doesn’t necessarily mean the client has failed. First confirm that the test request is going through the proxy.
A DNS check shows which resolvers handle domain lookup requests; the resolver’s country alone doesn’t tell you whether there’s a problem. The reported region can vary depending on whether you use a public resolver, remote resolution, or local resolution. Check whether requests that should go through the tunnel are unexpectedly leaving over the local network, rather than expecting every result to match the exit city.
Android Private DNS, encrypted DNS in individual apps, and the client’s DNS settings can all affect the results. Note the original settings, make changes according to the client’s instructions, then test again. Don’t disable several features at once, or it will be hard to tell what caused the difference. Keep IPv6 in mind too: if the client or rules don’t handle that traffic as expected, an exit check may show a different route.
| What you see | What it may indicate | What to check next |
|---|---|---|
| VPN icon is visible | The system VPN interface is active | Check the exit route and target app; the icon alone doesn’t confirm setup is complete |
| Exit address hasn’t changed | The lookup request may be connecting directly, or the connection may not be working | Check browser routing rules, the selected configuration, and connection logs |
| Browser works, but the target app fails | Different apps may match different rules | Check the app include/exclude list, account region, and service status |
| Can’t access the service after locking the screen | Background activity or network-switch recovery may need troubleshooting | Check battery restrictions, background data, and whether reconnecting helps |
| DNS result shows a different region from the exit route | A separate resolver may be in use; this alone doesn’t prove a leak | Check the DNS policy, Private DNS settings, and the actual request path together |
Still not working? Gather details by troubleshooting layer
Change one setting at a time. First, confirm your local network works without the VPN. Then check whether the subscription updates, followed by system permissions, the selected configuration and route, and finally traffic rules and DNS. Changing clients, protocols, and rules repeatedly can make a reproducible problem much harder to diagnose.
When contacting support, include your Android version, client name and version, network type, whether the failure occurs during import or connection, and whether it affects just one app. You can share sanitized error details, but don’t send your full subscription link, password, or screenshots containing credentials. For more troubleshooting steps, see the troubleshooting guide.
Setup is complete when: the subscription has updated, system permissions are in place, background activity behaves as expected, the exit route and traffic rules are correct, and the target app works in practice. An “Connected” status by itself isn’t enough to confirm that your Android VPN is set up correctly.