Troubleshooting sequence: Keep your existing nodes, then determine whether the subscription request failed or its response could not be parsed. Check the link and compare direct and proxied update paths, then set the auto-update interval. This guide is for v2rayN users who have already added a subscription but see an error or no changes after updating. It covers menu options, HTTP status codes, and how to verify that updates are working again.
1. Subscription Update Errors vs. Connection Failures
Know what failed: A subscription update requests configuration data from a subscription URL. A node connection uses the core to connect through a specific configuration. They may involve different domains, ports, and network paths. An old node that still loads web pages does not mean the subscription URL is still valid, and a successful subscription download does not mean every node can connect.
Keep your settings: Before troubleshooting, note which nodes work and the names of your subscription groups. Use the client’s configuration backup feature to save essential settings, and store the backup securely. Don’t delete the entire group or repeatedly clear the list—you could remove the only connection that lets you update through a proxy.
- Request failed: If the log shows a DNS lookup failure, connection timeout, certificate error, or HTTP error status, check the URL and network path first.
- Parsing failed: The request returned content, but no configuration was detected. Check the response body and subscription format.
- No changes to the list: If the log says the update completed but the node list is unchanged, the server may simply have returned the same content as before.
- Can’t connect after updating: If the new configuration appears in the list, check its parameters, core support, and server status. Changing the update interval won’t fix a connection problem.
2. Check the Subscription URL: Validity, Access, and Rate Limits
Check the URL: In the main window, go to “Subscription Group” → “Subscription Group Settings” and edit the affected group. Verify the subscription URL. Depending on the version, the menu may be shortened to “Subscription Settings”; use the edit window that shows the group name, URL, and update options. Copy the URL again from your provider’s subscription page instead of taking a partial link from a chat.
Protect the URL: Subscription URLs often contain access tokens, so treat them like passwords. Check for leading or trailing spaces, line breaks, missing query parameters, and cases where the escaped & in a web page is mistaken for an actual URL separator. Don’t remove parameters after the question mark or paste the full URL into public logs or online parsing tools.
Understand the status: A 401 may indicate an invalid token. A 403 can also come from an access policy or security page, so the status alone doesn’t prove that your account has expired. For a 404, check whether the path or entry point has changed. For a 429, follow the server’s indicated wait time. If no wait time is given, stop automatic and manual retries, then check your provider’s instructions.
Bottom line: Confirm the subscription entry point before changing the network path
What to do: If your subscription token has been reset, replace the old URL in the group first. Changing DNS, switching cores, or shortening the update interval won’t restore revoked access.
3. Update Through a Proxy: Start with a Working Connection
Understand the paths: v2rayN’s subscription menu typically includes commands such as “Update current subscription (without proxy)” and “Update current subscription (through proxy).” The scope may also be “All subscriptions.” Wording and punctuation vary by version, but check both dimensions: current or all subscriptions, and direct or proxied access. Troubleshoot one group at a time to avoid mixing in errors from other subscriptions.
-
Select the target group
Choose the group: Select the affected subscription group in the main window. Make sure the update will target that group rather than all subscriptions.
-
Try a direct update
Test direct access: Open “Subscription Group” and choose the command to update the current subscription without a proxy. Note the result. If the URL is accessible on your current network, no node is needed.
-
Enable a working node
Prepare the proxy: Select a node you’ve already verified and set it as the active server. Confirm that the core is running. A selected node alone doesn’t prove that the local proxy is working.
-
Switch to a proxied update
Compare paths: Open “Subscription Group” again and choose the command to update the current subscription through a proxy. Compare the result with the direct update to see whether the failure depends on the path to the subscription domain.
-
Save the update method
Automatic updates: Go to “Subscription Group” → “Subscription Group Settings.” If your version has a “Update through proxy” option, save it according to your test results. Choosing a proxied update manually may not change the setting used by automatic updates.
System proxy limitations: Turning on the Windows system proxy doesn’t guarantee that every subscription request will use it. The client may explicitly use a direct connection or its own proxy entry. TUN mode and routing rules can also affect the actual outbound path. Use the update command, group settings, and logs to verify the path; don’t rely on the system proxy switch alone.
4. Read the Logs: Timeouts, Certificates, and Local Ports
Read the logs: Open v2rayN’s log or information panel and find the error at the time of a manual update. The English error snippets below may appear in network requests; exact wording varies with the system language, runtime, and version. Check the underlying exception too—not just the top-level “update failed” message.
Error: No such host is known.
Cause and fix: DNS lookup failed. First check that the subscription domain is spelled correctly, then check DNS resolution on your network. For a proxied update, also consider which side of the proxy resolves the target domain.
Error: Connection refused
Cause and fix: The connection was refused. If the target is a loopback address on your computer, check that the core is running and the proxy port matches. If it’s a remote subscription server, check the address and port in the log instead of assuming the local proxy is at fault.
Error: The SSL connection could not be established
Cause and fix: The TLS connection could not be established. Check the underlying exception, your system date, time, and time zone, then check the subscription domain’s certificate and whether the connection is being intercepted. Don’t disable certificate validation as a long-term fix.
Error: Response status code does not indicate success: 403 (Forbidden).
Cause and fix: The server rejected the request. Get the subscription URL again and confirm your access and your provider’s requirements. If the response is a security challenge page, use a subscription entry point designed for client requests.
Check the port: Go to “Settings” → “Parameter Settings” and find the local listening port fields. If the HTTP or mixed proxy port shown is 10808, run the command below in Windows PowerShell to check whether it’s listening. 10808 is only an example, not a default for every version or setup. If your port differs, replace it with the number shown in the interface.
Get-NetTCPConnection -LocalPort 10808 -State Listen |
Select-Object LocalAddress, LocalPort, OwningProcessInterpret the result: A listening entry only shows that a process is accepting connections on that port. It doesn’t prove the process belongs to v2rayN or that a remote node works. Compare the process ID in Task Manager. If there’s no entry, check for core startup errors, a port conflict, or a failed configuration load before trying a proxied update.
5. Downloaded but Not Parsed? Check the Response and Format
Check what was returned: A successful HTTP request only means the server sent a response; it doesn’t guarantee that the response contains nodes. Common responses include a login page, account notice, browser verification page, or subscription management page. A page opening in your browser doesn’t prove that its URL is an importable subscription link.
| Response | What it may mean | What to do |
|---|---|---|
| HTML page | Login page, verification page, or error page | Get the client subscription URL from your provider |
| Multiple share links | May contain VMess, VLESS, or other configurations | Check that your client supports the link type and fields |
| Encoded text | May be a Base64-encoded collection of share links | Make sure the content is complete and wasn’t truncated when copied |
| JSON configuration | May be a full core configuration, not a node subscription | Choose an import method appropriate for the configuration |
| Empty response | May indicate a server issue or changed access permissions | Check with your provider; don’t delete the old group yet |
Know the format boundaries: VMess and VLESS are identifiers related to node protocols; a subscription is a way to distribute configurations. They’re not the same thing. v2rayN’s ability to parse a particular share link doesn’t mean you can import any core configuration file as a node subscription. Likewise, a successful import doesn’t guarantee that the selected core supports every transport, security, or routing field.
Troubleshooting: Choose the subscription format intended for v2rayN from your provider’s client options, then update one group. If your client version is old, back up your settings and get a compatible version from this site’s download page. Don’t give a subscription containing a token to an unknown conversion service, and don’t remove protocol fields just to clear a parsing warning.
6. Auto-Update Intervals: Units, Proxy Options, and Sleep
Find the setting: Go to “Subscription Group” → “Subscription Group Settings,” edit the target group, and look for “Auto-update interval” or a similarly named field. Check the unit shown in the interface. Many versions use minutes, but follow the unit and instructions for your version rather than copying a number blindly.
- Interval examples: If the field is in minutes,
720means 12 hours and1440means 24 hours. These are practical examples, not official defaults or a request quota from your provider. - Proxy option: If the group editor has a “Update through proxy” option, choose it based on your manual test. Automatic updates still require a working local proxy and outbound node when they run.
- Turning updates off: Some versions use
0to disable automatic updates, but check the field’s instructions first. Without a clear explanation, don’t assume 0 means immediate or continuous updates. - When updates run: If the client is fully closed or the computer is asleep, don’t expect it to send requests on schedule. What happens when the client resumes depends on the version. After an important change, verify it manually.
- Verify saved settings: Save the settings, reopen the group, and confirm that the interval and toggle were retained. Then run a manual update using the same path as the scheduled task.
Choose a sensible frequency: Subscription updates won’t fix problems with remote nodes. Unless your provider specifies otherwise, start with a longer interval and update manually when nodes move or configurations change. Don’t send a request every minute to “keep the connection alive.” Updating several groups at once can also generate a burst of requests. If you’re rate-limited, reduce the request frequency instead of repeatedly restarting the client.
Bottom line: Fix a manual update first, then enable scheduled updates
Recommended order: Start by successfully updating the same group manually. Save the verified direct or proxied method, then set the interval. If a manual request still fails, a scheduled task will only repeat the same failure.
7. Common Questions and How to Verify Recovery
The URL opens in a browser. Why does the subscription update still fail?
Check the paths: Your browser may use the system proxy while the subscription command connects directly. Try both direct and proxied updates for the current group, then check the HTTP status and response. A login session in your browser may not be available to the client.
The update says it completed, but no nodes were added. Why?
Check the content: First make sure you’re viewing the right group, then check any filters, the last update time, and the log. If the server returned the same configuration, the node count won’t change. Don’t judge update success by node count alone.
My old nodes disappeared after an update. Do I need to import them again?
Check the source: Updates usually sync a group with the subscription content, so nodes removed by your provider may disappear. Make sure the group URL wasn’t changed by mistake, then ask your provider what changed. Keep manually maintained configurations in a separate group to avoid mixing them with synced subscriptions.
Manual updates work, but automatic updates often fail. What should I do?
Check the scheduled task: Review the interval unit and proxy option in the group settings, and make sure the client is running when the task is due. If you use a proxy, check that the active node is working at that time. Don’t assume the method used for the last manual update was saved automatically.
Verify recovery: After a successful update, make sure the target group is still there and the log shows no download or parsing errors. Then test a configuration by connecting to an actual destination. If a new node can’t connect, troubleshoot that separately. If you need to send request logs to support, include only the error time, status code, and a redacted error description. Remove subscription tokens, node credentials, and full URLs.
- Check the source: The group URL matches the current subscription entry point provided by your service.
- Check the path: You know whether updates use a direct or proxied connection and can reproduce a successful request.
- Check the configuration: The list belongs to the target group, and added or retained configurations can be enabled as expected.
- Check the schedule: The interval unit, update method, and client runtime requirements are confirmed. There’s no need to keep retrying manually.