Mistake #1: Treating "Global Mode" as the Default Setting

Many beginners set the proxy mode to "Global" right after installing the client, out of habit, only to find that even sites in mainland China become slower or stop loading entirely. Global mode routes all traffic through the proxy node — simple to set up, but unfriendly to accessing services based there. For everyday use, "Rule mode" (PAC mode) is recommended instead: it only routes the traffic that needs the proxy through a node while sites in mainland China connect directly, giving you better speed and experience overall.

Mistake #2: Assuming More Nodes or a Pricier Subscription Is Always Better

The number of nodes and the price of a subscription don't directly determine your actual experience. What really affects speed is the quality of a node's route, server load, and its network distance from your location. Rather than chasing "more expensive is better," a more practical approach is to use the client's built-in speed test to find a node with low latency and minimal packet loss, then stick with it.

Mistake #3: Reinstalling the Client the Moment It Won't Connect

Connection failures are usually caused by an expired subscription, a dead node, system proxy settings that haven't taken effect, or local network restrictions — rarely the client itself being broken. When something goes wrong, work through the checks in order: update your subscription and try a different node first, then check your system proxy/TUN mode settings, and only consider reinstalling as a last resort. Reinstalling blindly rarely fixes the actual problem, and you risk losing your existing configuration.

Mistake #4: Grabbing Subscription Links from Random, Untrusted Sources

Subscription content is, at its core, just text that the provider can replace with anything, so subscriptions from untrustworthy sources carry a real risk of containing maliciously configured or compromised nodes. Try to get your subscription from a reputable, well-reviewed source, and avoid casually sharing your own subscription link with others.

Mistake #5: Ignoring Client and System Updates

Clients like v2rayN and v2rayNG continuously fix protocol compatibility issues and improve performance. Leaving your client outdated for a long time tends to cause problems like "can't connect to nodes using a newer protocol" or a laggy interface. It's worth periodically checking the official release page and updating to the latest version promptly.

Mistake #6: Assuming Your Phone and Computer Need the Same Client

v2rayN only supports desktop platforms and can't be installed directly on a phone. Android devices need v2rayNG or v2flyNG instead — both can use the same subscription link, so there's no need to buy a separate one or reconfigure your node information.

Mistake #7: Treating Speed Test Results as the Only Measure of Real-World Speed

The built-in speed test usually only measures latency to the node server, which isn't quite the same as the real experience of visiting a specific website or app. A node with low latency isn't necessarily the fastest for every service — in practice, it helps to keep 2-3 nodes with similar latency on hand and switch between them as needed.

Mistake #8: Expecting Changes to Take Effect Without Saving or Restarting the Service

After adjusting routing rules, mode, or node parameters in the client, some settings only take effect after the proxy service is restarted. If you don't notice any change after adjusting a setting, check whether you need to manually restart the proxy connection before assuming something is wrong with your configuration.

Build These 3 Habits to Avoid Most Problems

Beyond the 8 specific mistakes above, a few simple habits in everyday use can help you avoid most trouble before it starts:

  • Update your subscription on a regular schedule: for example, manually tapping "Update Subscription" once a week, or setting an auto-update interval directly in the client, so you're not caught off guard by an outdated node list right when you need to connect.
  • Keep a backup of your working nodes/configuration: before switching to a new device or reinstalling your OS, make sure your subscription link or node information is safely saved somewhere, so you're not stuck hunting for your old setup when reconfiguring.
  • Keep an eye on version update notices on the download page: major client updates usually fix known issues from the previous version and improve protocol compatibility. Checking the changelog on the download page regularly lets you know right away whether it's worth upgrading.

What Order Should You Troubleshoot In?

If the problem persists after checking against the mistakes above, troubleshoot in order from simplest to most complex rather than trying things at random: first confirm whether your subscription has expired, then manually update it once, then test 2-3 different nodes, then check your proxy mode and system proxy toggle, and only then consider whether it's your local network environment or client version. The vast majority of connection issues can be traced within the first three steps — there's no need to reconfigure the entire client every time something goes wrong.

Final Thoughts

Most of the issues beginners run into really come down to a few areas: "mode selection," "subscription management," and "connection troubleshooting." Once you understand the basics behind these, using V2Ray will go a lot more smoothly. If you run into a specific issue while setting up, follow the step-by-step tutorial to troubleshoot, or check the FAQ page for more answers.