This article addresses the common issue of “what to do if v2rayNG can’t connect”: checking in order from mobile network, node status, client settings, to system restrictions, to help beginners quickly determine whether the problem is with the local network, the node, or an import/configuration error.
1. First confirm that the basic network is working properly
Many connection failures are not because v2rayNG itself is broken, but because the current network environment is unstable. It is recommended to start with the simplest check: turn off v2rayNG and open a browser to access domestic websites directly; if domestic webpages also cannot be opened, it means the phone’s network itself has a problem, and you should first switch Wi-Fi or mobile data.
- Switch networks once: if Wi-Fi doesn’t work, switch to 4G/5G; if mobile data doesn’t work, switch to Wi-Fi.
- Turn airplane mode off and back on to reacquire the network.
- Make sure the phone time is synchronized automatically; incorrect time may cause TLS handshake failure.
- Restart the router or phone to rule out temporary DNS or gateway issues.
If you cannot connect on networks such as those in companies, campuses, or hotels, but mobile data works, this usually means that network has restrictions on proxy protocols or ports. In this case, you can try changing the node, protocol, or network environment.
2. Check whether the node and subscription are available
If the basic network is normal, the next step is to check the nodes. Free nodes often become unusable because of expiration, congestion, or being blocked, so do not keep trying to connect to only one node repeatedly. This site also compiles free node resources, but free nodes are not guaranteed to remain stable long term, so it is recommended to prepare several backups.
- On the v2rayNG home page, long-press a node and select “Test real connection” or “Test real connection for all configurations.”
- If all nodes fail, first check whether the subscription link has expired or was copied incompletely.
- If only one specific node fails, just switch to another node.
- After importing a subscription, remember to use the menu in the upper-right corner to update the subscription, and do not rely on cached nodes from a long time ago.
When importing nodes, note that protocols such as VLESS, VMess, and Trojan use different parameters, so do not manually change fields such as address, port, UUID, or encryption method at random. Beginners are advised to import using a subscription link or a complete share link to reduce configuration errors.
3. Check the v2rayNG client settings
If the node is available but it still cannot connect, check the client. First confirm that you have tapped the connect button in the lower-right corner; only when the VPN icon appears at the top of the phone does it mean the proxy has started working. If the VPN authorization window does not pop up, go to the system settings, delete the old VPN authorization, and reconnect.
Next, go into the v2rayNG settings and confirm the routing mode. Beginners are advised to use “Bypass LAN and mainland China addresses” or the default rules, to avoid mistakenly sending all traffic into an unusable route. Do not fill in unfamiliar DNS addresses casually; if you encounter resolution issues, restore the default first.
If you have enabled other VPNs, accelerators, or ad-blocking apps, they may also conflict with v2rayNG. Please disable similar apps first, because the same phone usually cannot run multiple VPN tunnels stably at the same time.
4. Use error messages to quickly identify the cause
If the connection fails after you tap connect, you can open the logs to view the message. If you see timeout or connection refused, the node is most likely unreachable or the port is blocked; if you see TLS handshake failed, it may be caused by incorrect time, an SNI mismatch, or a node configuration change; if it shows no route or DNS failed, check the network and DNS first.
When troubleshooting, it is recommended to follow the order of “switch network, switch node, update subscription, restart client, check logs,” and do not start by randomly changing parameters. For beginners, if importing succeeds but connection fails, the most common reason is that the node has become invalid or the current network is restricted.
5. What if it still can’t connect?
You can try uninstalling and then installing the latest version of v2rayNG, then reimport the subscription; you can also import the same node into other clients for testing to determine whether it is a client issue. If all clients are unable to connect, you can basically confirm that the cause is the node or the network environment.
Finally, a reminder: tools for bypassing internet restrictions are clearly affected by the network environment, so connection failures are very common. Keeping the client updated, preparing multiple nodes, and avoiding changing parameters you do not understand will usually solve most v2rayNG connection issues.