Common V2Ray Client questions and troubleshooting

V2Ray usually refers to the Project V proxy ecosystem and its related protocols and core implementations, not one specific graphical application. v2rayN is a desktop client for Windows, macOS, and Linux; v2rayNG and v2flyNG are designed for Android. The former typically uses the Xray core, while the latter uses the V2Fly core. Most users should choose a client for their device platform first, then import the subscription or individual node configuration provided by their service provider.

Both are common protocol types in subscriptions. VMess includes protocol-level authentication and encryption, while VLESS has a leaner design. Actual security and usability also depend on TLS, REALITY, the transport method, and server configuration. Clients usually detect subscription contents automatically, so manual protocol conversion is unnecessary. When multiple nodes work, compare real connection latency, actual download performance, and stability rather than judging by the protocol name alone.

A subscription URL is a configuration entry generated by a service provider; one update can retrieve multiple nodes. Subscription groups let you manage subscriptions from different sources, update intervals, and filters separately in the client. An individual node is a specific server configuration, usually containing an address, port, protocol, and transport parameters. After changing a subscription URL, manually update the corresponding group, confirm that the node list changed, and then remove obsolete groups.

Ping mainly measures the basic network round-trip time between your device and the target address. Some servers restrict this type of probing, so results may be unavailable. Real connection latency includes the proxy protocol handshake and better reflects webpage response time. Download tests are also affected by line capacity, server load, and your local network. When choosing nodes, use real connection latency to rule out lines that cannot complete a handshake, then observe sustained performance through actual browsing or downloads.

First, make sure you copied the complete subscription URL, not the provider’s webpage address or a single-node share link. Open the subscription group settings, check that no spaces were added before or after the URL, save it, and run a manual update. If the update reports success but the list is still empty, check whether the group filters excluded every node. If the returned format cannot be recognized, ask the subscription provider whether the URL supports the current client and is still valid.

First, verify in a browser that the subscription URL still returns content, but never share its token publicly. Then check the system clock, network connection, and the client’s current proxy status. For the first update, try temporarily disabling the option to update subscriptions through the proxy. Once a working node is available, enable that option and try again. If only one group fails, the URL is usually invalid, access is restricted, or the server is temporarily unavailable; contact the subscription provider.

Most mainstream Android phones and tablets released after 2015 use 64-bit ARM processors, so arm64 is usually the preferred package and has a smaller file size. If you cannot confirm the device architecture, arm64 installation fails, or the device uses another supported architecture, use the universal package instead. The two packages provide essentially the same features; they differ in the processor architectures they include, and you do not need to install both.

First, confirm that the installer came from the current release file linked on this site’s download page, and check that your operating system meets the requirements. On Windows, review the blocked file’s source and available actions in the system security prompt. On macOS, confirm the launch in System Settings under Privacy & Security. On Linux, choose the deb or rpm format matching your distribution and processor architecture. If the app still will not start, record the OS version and the exact error message for further diagnosis.

First, confirm that a working node is selected and that the client status bar shows the proxy core running. Then switch the system proxy mode to automatic configuration or global proxy, fully quit the browser, and reopen it. Some browsers, download tools, and development tools use their own proxy settings; set them to follow the system proxy or manually enter the local HTTP or SOCKS port shown by the client. Also check whether another proxy application is using the same port.

TUN mode creates a virtual network interface and modifies system routes, which normally requires more than standard user permissions. On Windows, launch the client with administrator privileges. On macOS and Linux, follow the system prompts to authorize the network extension or confirm the required permissions. If TUN still cannot be enabled, check for other virtual adapters, enterprise network policies, or security software blocking it. Exit TUN mode before closing the client to help prevent leftover routes from affecting later network access.

Global mode sends connections within the proxy’s interception scope through the current node and is useful for temporarily checking whether rules are causing access problems. Rule mode decides between proxying and direct access based on domains, IPs, processes, or preset categories, making it suitable for everyday use. Direct mode is generally used to pause proxying or verify the local network. After switching modes, revisit the target site to test it. Existing long-lived connections may not immediately adopt the new rules, so close and reopen the relevant application if necessary.

The right update frequency depends on how quickly the subscription provider changes its nodes. For everyday use, set updates to every few hours or once a day. Frequent updates usually do not improve node quality and may instead trigger server-side request limits. When managing multiple subscriptions, create separate groups and stagger their update times. If the node currently in use is removed after an update, the client may require you to select another server, so avoid bulk updates during important connections.

First, confirm that your local network can access ordinary websites and that the system time and time zone are correct. Then update the subscription and run real connection latency tests on several nodes from different regions or using different protocols. If every test times out, focus on whether the proxy core is running, whether the port is occupied, whether a firewall is blocking access, and whether the subscription parameters are complete. If only a few nodes time out, the corresponding servers are usually offline, their routes are unstable, or their configurations have expired.

Connected only means that the client process or virtual interface is running; it does not guarantee that the current node can forward traffic. Run a real connection latency test and switch to a node with a normal result, then check that the system proxy or TUN is actually enabled. Next, test both domain access and direct IP access to distinguish a node failure from a DNS problem. If no application can connect, immediately disable TUN or the system proxy, confirm that the basic network has recovered, and then re-enable settings one at a time.

This usually requires checking DNS and routing rules. First switch to a confirmed working node and retest temporarily with a simpler rule mode. If only domain access fails while direct IP access works, check the client’s DNS configuration, FakeDNS settings, and any custom DNS settings left in the system. When TUN is enabled, also confirm that TUN is handling DNS requests. After changing the configuration, clear the system DNS cache and restart the browser so old resolution results do not remain in effect.

After waking from sleep, switching from wired to wireless networking, or changing hotspots, existing connections and routes may no longer work. First stop the proxy core in the client and disable the system proxy or TUN. Then restart the core and select a node. If you use TUN, confirm that the virtual adapter was recreated. If you use the system proxy, check that its address and port still point to the client. If the problem keeps recurring, update the client and check the power-saving settings for the network adapter.