This article addresses the common issue of “What to do if v2rayNG won’t connect”: you will check your node, mobile network, IP status, DNS, and browser environment in order. It is suitable for Android users who have already imported VLESS, VMess, Trojan, and other nodes but still cannot access the internet.
1. First, confirm that the basic v2rayNG settings are correct
Many connection failures are not caused by an invalid node, but by problems with importing, routing, or the system proxy status. It is recommended not to keep switching clients repeatedly; instead, troubleshoot step by step as follows:
- Open v2rayNG and confirm that the currently selected node is not an empty configuration, and that the address, port, UUID, encryption, transport layer, and other fields are not obviously missing.
- Tap the test button in the upper right and prioritize checking “Test all configurations with real connection” or similar real-connection results. Latency alone does not necessarily mean the node is usable.
- Make sure the V icon in the lower right has been started and that a VPN icon appears in the notification bar; if not, it means the system VPN tunnel has not been established.
- Go to Settings. For ordinary users, it is recommended to first choose “Bypass LAN and mainland China addresses” or the default rules for routing mode, and do not casually change it to global blocking.
- If you are using this site’s free nodes, it is recommended to copy the latest subscription or node link again to avoid expired old nodes.
If you get an error when starting, the connection drops immediately, or it stays stuck on connecting, you can long-press the node to check whether the configuration type matches the server-side protocol. For example, if a VLESS node is mistakenly imported as VMess, the connection will fail.
2. IP and network environment can affect the connection
v2rayNG requires that your phone’s current network can normally access the node server. If you are using it on a company network, campus network, or public Wi-Fi, there may be port restrictions or UDP/TCP policy blocking. In this case, you can first switch to mobile data for testing, then switch back to Wi-Fi for comparison.
In addition, after frequently toggling airplane mode or switching networks, your phone’s outbound IP changes, and some nodes may need to perform the handshake again. The recommended order is: first disconnect v2rayNG, then switch networks, and finally reconnect. If the same node does not work on Wi-Fi but works on mobile data, the problem is most likely local network restrictions; if neither works, prioritize checking whether the node has expired or the configuration is incorrect.
3. Incorrect DNS settings can cause “connected but nothing opens”
Many users see that v2rayNG shows as connected, yet web pages still will not open. This is often related to DNS resolution. Typical symptoms include: the browser says the server cannot be found, some websites will not open, or apps work while web pages do not.
- In v2rayNG settings, enable local DNS or use the default DNS. Do not enter too many custom addresses at first.
- If you previously set a Private DNS, such as the “Private DNS” option in your phone system settings, temporarily switch it to automatic or turn it off and try again.
- Clear the browser’s DNS cache, or simply test with a different browser.
- Do not enable multiple proxies, accelerators, or secure DNS tools at the same time, to avoid a confusing resolution path.
When troubleshooting DNS, it is recommended to test with a common website rather than just a single URL, because the target site itself may also be temporarily inaccessible.
4. Check the browser and system environment as well
If v2rayNG is connected but only one specific browser cannot be used, the problem may not be with the node. Check whether the browser has a proxy extension, DoH secure DNS, privacy-mode extensions, or ad-blocking rules enabled. On Android, you should also confirm that v2rayNG is not being killed in the background by battery-saving policies; it is recommended to add it to the battery optimization whitelist.
Finally, here is a quick way to judge the issue: switch to a latest node, change to mobile data, disable Private DNS, restart v2rayNG, and test again. If this works, the original problem most likely came from the node, network, or DNS; if it still fails, then check the error messages in the v2rayNG log, such as timeout, connection refused, TLS handshake failed, and so on, and handle them accordingly. While troubleshooting, change only one setting at a time so you can accurately identify the cause.