For users who have imported a subscription but see timeouts, certificate errors, or no nodes after an update. Use the logs to identify URL, network, or parsing issues. Then compare direct and proxied updates for the same subscription and set an auto-update interval. Keep existing nodes while troubleshooting: don’t delete the group or bypass errors by disabling certificate validation.
1. Subscription updates failing? Find where the process stops
A subscription update sends a request to the subscription URL, downloads its contents, and parses them into a node list. It is not a VMess or VLESS node connection test, nor does it update the Xray core. If an old node still connects, that only confirms the node’s connection is working; it doesn’t mean the subscription server is reachable.
Open the information or log panel on the main screen and update just one group. Note the time, update method, and a few log lines around the error. Don’t change DNS, switch nodes, and replace the subscription URL all at once; even if the issue clears, you won’t know which change fixed it. The examples below help identify the failing stage. Exact wording varies by environment and client version.
Error: No such host is known
Cause: The subscription domain could not be resolved. The URL may be mistyped, the domain may no longer be active, or the current DNS server may be unable to resolve it.
Fix: Copy the URL again from your provider’s dashboard and check the domain. Then check your system DNS and network; don’t change node protocol settings.
Error: The operation has timed out
Cause: The request didn’t complete in time. It may be stuck while connecting, forwarding through a proxy, or waiting for the server to respond.
Fix: Try updating the same group both directly and through a proxy. For a proxied update, first select a working node.
Error: The SSL connection could not be established
Cause: The TLS connection could not be established. Check the inner exception to distinguish certificate issues from a protocol negotiation failure or dropped connection.
Fix: Sync your system clock, then check the certificate’s validity period and whether its domain matches. This error alone doesn’t mean the subscription has expired.
2. Expired links and HTTP status codes: check the subscription group settings first
Go to “Subscription groups” → “Subscription group settings,” find the affected group, and check its subscription URL. Depending on the interface, you may need to double-click the group or use an Edit button; either way, check that group’s URL field. Copy the full subscription URL from your provider—not the account login page, plan details page, or dashboard URL in your browser.
- Copy the URL again: Keep its path and query parameters intact. Check for leading or trailing spaces, line breaks, and punctuation added by a messaging app. Don’t remove tokens just because they look random.
- Check your account status: Make sure your plan hasn’t expired, the subscription token hasn’t been reset, and your provider hasn’t moved the subscription to a new domain. Restarting the client won’t restore an old URL.
- Edit only the affected group: Save the original URL, replace it, and save the group. Then update that group manually. Don’t delete the existing nodes yet.
- Check the URL and format separately: If the request succeeds but no nodes appear, check whether your provider offers a subscription format supported by v2rayN. Not every configuration file is a node subscription.
| Response | Check first | What to do next |
|---|---|---|
| HTTP 401 | Missing credentials, an expired token, or a change in authentication | Sign in to your provider’s dashboard and get a new, complete subscription URL |
| HTTP 403 | Access policy, account permissions, or restrictions on the outgoing IP address | Check your account status and compare direct access with a proxied connection |
| HTTP 404 / 410 | An old path or a subscription endpoint that has been removed | Check the current URL in your provider’s dashboard; don’t guess the path |
| HTTP 429 | The request rate has hit a limit | Stop clicking repeatedly. Wait as indicated by the response or your provider, then try again |
| HTTP 5xx | Subscription service or upstream outage | Keep your existing nodes, try again later, and check for provider announcements |
| HTTP 200, but parsing failed | The response was a login page, verification page, empty content, or an unsupported format | Check the response content and subscription format, not just the status code |
Got an HTTP status code? Check the response before troubleshooting node protocols
If you received a 401, 403, or 404, a server at least responded to this request. Check the URL, permissions, and response content first. Don’t focus on VMess, VLESS, or node transport settings.
Subscription URLs often contain account tokens, so treat them like passwords. Don’t post them on public forums or paste them into unfamiliar online conversion sites. Redact the full URL, query parameters, and node credentials before sharing logs. If you need to inspect the response, do it locally; don’t publicly share screenshots showing your personal subscription data in a browser.
3. Network timeouts: compare direct and proxied updates
Being able to open your provider’s homepage in a browser doesn’t mean the subscription URL is reachable. The homepage and subscription endpoint may use different domains or access policies, and your browser may use its own proxy. Check the option used for the subscription update itself to see whether v2rayN sends the request through a proxy; the system proxy setting alone won’t tell you.
- Try updating without a proxy first: In the “Subscription groups” menu, choose the relevant update option that does not use a proxy, and update only the affected group. Note whether it times out, fails to resolve the domain, or returns an HTTP status code.
- Make sure the proxy node works: Select a retained node that can actually reach the internet, and confirm the core is running. A node appearing in the list or showing a test result doesn’t guarantee the subscription request will succeed.
- Then try updating through a proxy: Choose a subscription update option that uses a proxy and compare the result for the same URL. Some versions put the method options together in the update menu; follow the labels shown in your interface.
- Isolate network variables: If both methods fail, try another network if you’re allowed to. Change one condition at a time, rather than adjusting routing and DNS together.
Use the actual local port settings as your reference. For example, if your local proxy listens on 10808 while another program still points to 10809, they’re using different endpoints. This illustrates a port mismatch; it doesn’t mean you should change your port to a particular default. Check the local listener options under “Settings” → “Parameter settings,” and use the logs to confirm the port is listening. A port conflict or a stopped core can make proxied updates fail.
- Direct update fails, proxy update works: Keep the working nodes and use a proxy for future updates. Also check which update method the subscription group’s scheduled task uses.
- Direct update works, proxy update fails: Check the selected node, proxy port, and outbound access restrictions. You probably don’t need to replace the subscription URL.
- Both methods time out: Check the subscription domain, service status, and current network before considering a DNS change.
- Both return the same authentication error: Fix the account or token issue instead of repeatedly switching proxy nodes.
4. Certificate errors: sync your clock, then check the TLS trust chain
HTTPS subscriptions validate the server’s certificate. An incorrect system date can make a valid certificate appear not yet valid or expired. An expired server certificate, a domain mismatch, or an incomplete certificate chain can also block the connection. Browsers and clients may use different trust environments, so a successful browser visit is a clue, not a substitute for checking the client logs.
- Check your system clock: On Windows, go to “Settings” → “Time & language” → “Date & time.” Check your time zone and automatic time settings, then select “Sync now.” Try the subscription update again.
- Check the subscription domain: Don’t manually replace the domain in an HTTPS URL with an IP address. Certificates are usually issued for domain names, so using an IP may cause a name mismatch.
- Check network sign-in: If a public network requires sign-in, complete its authentication first. A request redirected to a sign-in page may appear as a certificate error or return an HTML page.
- Check organizational network policies: Managed devices may inspect HTTPS connections using organizational certificates. Ask your administrator to confirm the trusted certificate setup; don’t install root certificates from unknown sources.
- Check for a server-side issue: If your system clock is correct and the same certificate error occurs on different networks, send your provider the error details and time of occurrence.
Error: RemoteCertificateNameMismatch
Cause: The requested hostname doesn’t match the name on the server certificate. The URL may be wrong, or the request may have been redirected unexpectedly.
Fix: Check the HTTPS subscription domain published by your provider. Don’t work around the issue by substituting an IP address or disabling validation.
Error: RemoteCertificateChainErrors
Cause: Certificate chain validation failed. Possible causes include an expired certificate, a missing intermediate certificate, or an untrusted issuer.
Fix: Sync your system clock and update your system’s trusted certificates. If only this subscription domain fails, ask your provider to check its certificate setup.
“Allow insecure” in node settings applies to the relevant node connection; it is not a general fix for downloading HTTPS subscriptions. Downgrading the subscription URL to HTTP also removes transport protection and isn’t a safe long-term solution. Check the clock, domain, and trust chain in that order, then have the server operator fix the certificate.
5. Set the auto-update interval and proxy method
Once a manual update succeeds, configure the scheduled task. Go to “Subscription groups” → “Subscription group settings,” edit the target group, and check its auto-update interval and any proxy update options available in your version. Field locations, units, and scheduled task behavior vary by version. Manually updating through a proxy once doesn’t mean scheduled updates will use the same method.
- Check the unit before entering a number: If the field is in minutes, enter
360for every 6 hours. If it’s in hours, enter6. These are conversions; use the interval recommended by your provider. - Check what disables updates: Don’t assume
0means “update continuously.” Check the field’s help text to see whether it disables updates. To enable them, enter a positive value accepted by the interface. - Confirm the proxy method: If the group editor has an “Update through proxy” option, save the method you’ve verified works. If your version only offers the choice in the update menu, check the scheduled task’s actual settings and logs instead of inferring its behavior from a menu selection.
- Check that the task runs after saving: Note when you saved the settings, then check the logs while the client is running and the network is available. A desktop app can’t run its scheduled tasks as usual while it’s closed or the device is asleep.
- Limit retries: If you get a 429 or an explicit rate-limit response, stop retrying repeatedly. If multiple devices share a subscription, account for the combined requests they generate.
Setup principle: get one update working before scheduling it
Use the same group to confirm three things before setting an interval: the URL works, the update method works, and the response parses into nodes. A scheduled task only repeats the same request; it can’t fix an expired token, a certificate error, or a nonworking proxy route.
If manual updates work consistently but scheduled updates never appear in the logs, first check that you edited the right group, saved the interval, and left the program running. Then investigate the task settings. If the task does make a request but fails, test using the network method shown in its logs. Don’t confuse a task that never ran with one that ran and failed.
6. Common questions and checks after recovery
Can I keep using my existing nodes after an update fails?
That depends on whether the nodes still work. Keep the list and test a previously configured node’s connection; a failed subscription download doesn’t mean every node stopped working. Before updating, you can also use the client’s backup or export feature to safely save data that contains credentials.
The update says it succeeded, but why hasn’t the node count increased?
The subscription may not have changed, or group filters may have excluded some nodes. Switch to the group you updated and check its filters and the import results in the logs. Don’t judge success by whether the total node count went up.
The subscription opens in my browser, but v2rayN keeps failing. What should I do?
First check that the browser shows subscription data, not a login or verification page, then compare the proxy routes used by the browser and client. Next, check the client logs for certificate errors, HTTP status codes, and parsing errors. Change one thing at a time.
After reimporting, I have duplicate groups. Should I delete them all?
First compare each group’s URL and node assignments. Make sure the new group updates and its nodes work before removing duplicates. Don’t delete groups just because their names look similar; they may have different sources or filter settings.
After recovery, check two things separately: whether the subscription can be fetched and parsed, and whether the selected node connects. The first is subscription management; the second involves node settings, the core, system proxy, and routing. If either still has a problem, continue troubleshooting with the troubleshooting guide. To understand how entry points and routing work together, see the configuration guide.
- The logs show the target group updated successfully, with no remaining download or parsing errors.
- The group contains the expected nodes, and its filters match the source.
- The connection works, and the auto-update method and interval have been saved.
- Screenshots and logs shared with others have the subscription token and node credentials redacted.