Android VPN Setup from Scratch: Import Subscriptions, Grant Permissions, and Configure Battery Optimization

Setting up an Android VPN from scratch involves more than pasting a subscription URL into a client. A reliable setup requires matching the client to the protocol, importing the subscription, granting system VPN permission, allowing background operation, choosing a routing mode, and verifying the connection. If any step is missed, you may see “the node is available, but disconnects in the background” or “the VPN icon is visible in the status bar, but traffic is not routed as expected.”

The steps below follow the practical order of setup. Menu names vary between Android versions and device manufacturers, but the troubleshooting logic is largely the same: first confirm that the client recognizes the protocols in the subscription, then grant system permission, address battery restrictions, and finally check the public exit address and DNS requests separately. Do not treat a changed client button alone as proof that the connection works.

Match the Android client to the protocol first

The subscription service provides nodes and connection parameters, while the Android client parses those parameters and creates the local VPN tunnel. They are separate components. Even when the subscription URL is valid, an unsupported protocol or subscription format can cause a parse error, an empty node list, or a failed connection after import.

When choosing a client, start with the recommended client type shown on the subscription page, then check which protocols it supports. An app with VPN in its name is not automatically compatible. Some apps accept only standardized configuration files, some can read generic subscriptions directly, and others require the service to convert the subscription into a specific format first.

Protocol	What to check during import	Common configuration traits
Shadowsocks	Whether the encryption method, server address, and authentication details were parsed completely	Relatively simple configuration with broad client support
VMess	Whether the transport method, path, hostname, and TLS parameters match	Many parameters; manual copying makes omissions easy
Trojan	Whether the domain, certificate validation, and server name match	Usually relies on TLS; an incorrect system clock can also affect the connection
VLESS	Whether the client supports the transport and security settings used by the subscription	The protocol alone is not the complete transport design; assess it together with its additional parameters
Hysteria2	Whether the client version includes the relevant protocol core and whether the network permits the required transport	More dependent on the client implementation and the current network environment
TUIC	Confirm that the client explicitly lists support and correctly reads the certificate and congestion-control settings	Older client versions may not recognize newer configurations

IEPL dedicated lines, transit routing, and direct connections describe the network path from the node’s entry point to its exit, not the client protocol. A node labeled IEPL or transit routing still uses one of the protocols in the subscription to establish the client connection. A direct node usually reaches the remote entry point through the local network; a transit node first connects to a transit entry point before forwarding traffic; IEPL describes a line resource type. During import, the client mainly handles protocol parameters, while the server determines the node’s network path.

Import the subscription and update nodes

After installing the client, copy the subscription URL from the EyVPN user panel. Open the client’s configuration, subscription, or profile page and choose “Import from clipboard,” “Add via URL,” or a similarly named option. After pasting, give the subscription a recognizable name and run an update. Under normal conditions, the client displays region or line names rather than leaving only an unidentifiable raw URL.

1. Copy the subscription URL. Use the copy function in the user panel to avoid missing characters or including line breaks during manual selection.
2. Open subscription management. Do not paste the subscription URL into a single-node configuration page; that entry point usually accepts only the complete parameters for one protocol.
3. Add and update. After saving the subscription, run an update manually so the client retrieves the current node list.
4. Check the parse result. Confirm that the list contains recognizable region, node, or line names, and look for messages such as “unsupported protocol.”
5. Choose a node. For the first test, select a nearby line suited to your purpose. Do not enable complex auto-switching and custom rules at the same time.

• ✅ The subscription name and node list are visible, showing that the URL was at least read and parsed successfully.
• ✅ The manual update completed without authentication or format errors, so you can continue with system authorization.
• ❌ If the list is blank, first check that the URL is complete, then verify the client’s supported protocols.
• ❌ If importing a single node works but the subscription fails, return to subscription management instead of repeatedly entering node parameters by hand.

An imported subscription is not permanently static. Line changes, configuration updates, or protocol parameter changes require the client to fetch the subscription again. If every previously working node suddenly fails, update the subscription first, then fully stop the old connection and select a node again. Repeatedly importing the same URL can create duplicate subscriptions, making it difficult to tell which configuration is active.

How to handle VPN connection permission

When you tap Connect for the first time, Android displays a system VPN confirmation dialog. This dialog means the app is requesting permission to create a local VPN interface so the selected traffic can be handled by the client. Allow it only after confirming that the app source and subscription configuration are correct. After authorization, a VPN status indicator usually appears in the status bar or system network settings.

Android generally maintains one primary VPN interface in the same user environment. If the device already has another VPN, a work profile, an ad-blocking app, or a firewall using a local VPN interface, the new connection may replace the old one or fail because the interface is occupied. If tapping Connect immediately returns to a disconnected state, check whether these apps are still running.

Some Android versions offer system options such as “Always-on VPN” and “Block connections without VPN.” They are useful when traffic must continuously pass through a specific client, but they should not be enabled hastily during initial setup. If a node is temporarily unreachable, blocking connections can also disable ordinary network access; split-tunneling rules, local-network access, and captive-portal login pages may be affected as well. Verify a standard connection first, then decide whether to enable these options based on your needs.

Battery optimization exemptions and background keep-alive

Android limits background apps according to its power-management policies. Although VPN clients usually run a foreground service, some systems may still pause their processes when the screen is off, the app has not been opened for a long time, or the network changes. A common symptom is a connection that works in the foreground, gradually stops responding after switching apps, and recovers when the client is reopened.

In system settings, open app management and the battery or power-management page for the VPN client. Set it to allow background activity, unrestricted use, or no optimization. Names vary by system, but the goal is to exclude the client from automatic sleep. If the system also provides auto-start, background-start, or recent-task locking controls, make sure the client is not terminated during task cleanup.

1. Open the app list in system settings and select the VPN client you are using.
2. Open Battery, power management, or background activity settings and disable automatic optimization for the app.
3. Allow the client to run in the background and check whether system-wide data-saving features restrict its network access.
4. After connecting to a node, switch to another app, lock the screen, and wake it again to see whether the VPN status remains active.
5. If the connection drops when switching between Wi-Fi and mobile data, return to the client and check its auto-reconnect setting.

Adding the client to a battery-optimization exemption list will not fix an invalid subscription or an unavailable node. It addresses the case where the connection succeeds but the system restricts the process in the background. If the connection cannot be established in the foreground either, return to protocol compatibility, subscription updates, and the current network environment instead of repeatedly changing battery settings.

Split-tunneling rules and app proxy scope

Common Android client routing modes include global routing, rule-based split tunneling, and per-app selection. Global routing makes it easy to determine whether the line works initially, but sends more traffic through the node. Rule-based routing uses domains, addresses, or rule sets to choose direct or VPN paths. Per-app selection sends only selected apps through the VPN interface or excludes apps that do not need routed traffic.

For the first connection, start with the client’s default rules. Once basic access works, configure paths for local-network devices, mainland services, international websites, or specific apps. Too many rules make troubleshooting difficult: a target domain may match a direct rule while a related endpoint matches a VPN rule, causing only part of a page to fail.

Mode	Best for	What to check
Global routing	Initial exit-route verification and temporarily eliminating rule interference	Whether local services and local-network access are affected
Rule-based split tunneling	Daily use when direct and international routes need to be separated	Rule order, DNS results, and the final matching rule
Per-app selection	Allowing only selected apps to use the connection	Whether the target app and its related components are all included

Per-app routing is especially prone to misleading results. Including a browser in the VPN does not mean other apps use the same exit route. Some apps also call system components to complete sign-in or open web pages. If you select only the main app and exclude related components, the main page may work while the authorization page fails to load. For troubleshooting, temporarily switch to global routing. If the issue disappears, narrow the app scope one item at a time.

Two-step verification that the connection is working

After completing authorization and background settings, verify the connection in two ways: check the public exit address and the DNS resolution path. Testing only whether a webpage opens is not enough, because the page may use a direct route, remain available from cache, or use a different resolution method than expected.

Check the public exit address first

Before connecting, open a trusted network-information page and note the current public exit region. Connect to the target node, reload the page, and confirm that the result changes in a way consistent with the node’s region. To avoid cached results, close the original page and open it again. If the address does not change, temporarily switch the client to global routing and check whether the browser or target app is excluded from the VPN scope.

Then check the DNS request path

A DNS leak usually means domain queries are not following the resolution path configured in the client and are instead handled by the local network. When using a DNS testing page, start a fresh test after connecting and check whether the resolvers match the current configuration. If the result is unexpected, inspect the client’s remote DNS, Android Private DNS, browser Secure DNS, and split-tunneling rules for conflicts.

Private DNS and a VPN do not necessarily conflict, but both can affect the resolution path. If the client expects to control DNS while the system or browser forces another resolver, the test result may differ from expectations. Do not change every setting at once. Keep the node and protocol unchanged, restore defaults one option at a time, and identify which layer changed the resolution result.

• ✅ The public exit address matches the selected node’s region, indicating that the target app’s traffic has entered the expected route.
• ✅ The DNS test matches the client configuration and remains consistent after reconnecting.
• ❌ If the VPN indicator is present but the exit address is unchanged, check per-app routing and rule matches first.
• ❌ If the exit address changes but DNS resolution is abnormal, check remote DNS, Private DNS, and the browser’s DNS settings.

Common Android VPN troubleshooting

No nodes appear after import

Run an update from subscription management first, confirm that the URL was copied completely, and remove any extra spaces. If the client reports an unsupported format, check the client or subscription type recommended in the service panel. Do not paste a subscription URL into a field that accepts only a single-node URI.

Every node fails to connect

First confirm that the device clock is set to automatic synchronization, since an incorrect time can affect TLS certificate validation. Then update the subscription, close other apps using the VPN interface, and test by switching between Wi-Fi and another available network. If only nodes using protocols such as Hysteria2 or TUIC fail while other protocols connect, focus on client-core support and how the current network handles the relevant transport.

The connection drops after running for a while

Check battery-optimization exemptions, background activity, auto-start, and data-saving restrictions. If the drop occurs after a network change, enable the client’s auto-reconnect feature and confirm that the system is not pausing its background process during the switch. If the issue persists, record the time, selected node, protocol, and client error so it can be distinguished from a background restriction or line problem.

Websites work, but one app does not

Review the per-app routing list, then temporarily switch to global routing. If global mode restores access, the issue is more likely related to app scope or routing rules than to the node itself. If global mode still fails, clear the target app’s old connection state and test again, while checking whether it has its own proxy or custom DNS enabled.

A useful troubleshooting order is: client compatibility, subscription parsing, system authorization, node connection, routing matches, DNS path, and battery restrictions. Change only one variable at a time so each result remains meaningful.