v2rayN Subscription Update Failed: Fix Invalid Links, Certificate Errors, and Update Intervals

1. How subscription updates work: Find the point of failure

A subscription update involves the client requesting a subscription URL, receiving a response, and parsing the node list. It is not the same as testing a node connection. If an old node still works, its existing configuration can still connect, but that does not prove the subscription URL is valid. Likewise, a successful download does not mean every node in the response works.

Open the log or information pane in the main window, then update just one subscription group and note the error for that request. Updating every group at once can mix together timeouts, certificate errors, and parsing details from different URLs. If you only see “Update failed,” check the surrounding log entries instead of relying on the final line alone.

1. Note the full version number, operating system, and time of failure from the client’s About page so you can match the instructions to your setup.
2. Keep your existing nodes and group settings. Don’t delete all servers or repeatedly reset the app.
3. Note whether this update used a proxy. Change just one setting per test, then compare the logs.
4. Before sharing a screenshot, hide the full subscription URL, query parameters, account details, and node credentials.

2. Invalid links and HTTP status codes: Check the subscription URL first

Open Subscription Groups → Subscription Group Settings, edit the group that failed, and check its subscription URL. Menu labels may vary slightly between desktop versions; look for the group editor with the URL and auto-update options. Use the subscription URL provided by your service. An account login page, order page, or node information page is not a substitute.

When copying the URL again, check for spaces, line breaks, or truncated query parameters. Don’t delete anything after the question mark or change HTTPS to HTTP to get around an error. If the service recently reset your subscription, the old URL may stop working immediately even while existing nodes continue to connect for a while. There’s no contradiction between the two.

3. Certificate errors: Check the clock, trust chain, and network filtering

When a subscription URL uses HTTPS, the client must validate the server certificate. This usually happens before subscription parsing, so changing VMess, VLESS, or Trojan node settings will not fix a certificate error. The examples below are English phrases that may appear in error details; exact wording varies by system and runtime.

• Windows: Go to Settings → Time & language → Date & time and check the date, time zone, and sync status.
• macOS: Go to System Settings → General → Date & Time and check whether automatic time setting is enabled.
• Managed networks: If the network uses HTTPS inspection, ask the administrator to verify the trust configuration. Don’t install root certificates from unknown sources.
• Public networks: Complete the network sign-in first, then update the subscription. Networks that require web authentication may block standard HTTPS requests.

Opening the URL in a browser is only a clue: browsers and clients may use different proxy routes, caches, and certificate handling. Don’t treat temporarily ignoring a certificate warning in a browser as a fix, or disable certificate validation as a default setting for subscription updates.

4. Timeouts and connectivity issues: Compare direct and proxied updates

A timeout means the request did not finish within the allotted time; it does not mean the URL is invalid. DNS resolution failures, blocked connections, a stopped proxy core, or a slow server can all appear as update failures. Test the same group using each request route separately instead of changing DNS, routing, and ports all at once.

1. Test an update without a proxy: In the Subscription Groups menu, choose the option to update this group without a proxy. Note the result and error time.
2. Confirm the proxy works: Select an existing node that still connects, make sure the core starts normally, then test access by opening a webpage. A TCP latency reading alone does not prove the full proxy route is working.
3. Test an update through a proxy: In the same menu, choose the option to update through a proxy, then update the same group. Some versions place these options in a submenu; look for the choices that mean “through a proxy” and “without a proxy.”
4. Compare the results: If direct updates fail but proxied updates work, investigate the direct network route. If proxied updates fail but direct updates work, check the current node, local listener, and related routing settings.

The system proxy toggle controls how apps that follow system proxy settings send requests. The update option in the subscription menu selects the route for that subscription request. They are separate settings; you can’t tell whether the client’s subscription download uses a proxy just by checking the browser.

If a local connection is refused, check Settings → Parameter Settings for the listener configuration. For example, if the actual proxy endpoint is 127.0.0.1:10808, software configured to use a proxy manually cannot keep using the disabled 10809 port. These ports are examples, not defaults for every version. Also check whether the endpoint accepts HTTP, SOCKS, or a mixed proxy.

5. Update succeeds but no nodes appear: Check the response format and group settings

Even after the server returns a successful response, the client may be unable to parse its contents. Common causes include an account login page in HTML, a web verification page, an empty response, or a complete file for a different configuration system. Seeing text at the subscription URL in a browser does not mean it is a node list v2rayN can import.

• Check the content source: Make sure you copied the subscription URL for this client, not a webpage URL. Don’t upload your subscription to an unfamiliar online parser.
• Identify the error: Distinguish a “request failed” error from a parsing result such as “no valid servers found.” The latter means you should check the response content and supported formats.
• Check what’s displayed: Make sure the main window isn’t showing a different group, clear any search filters, and check the group’s node filtering settings.
• Check client compatibility: Note the current version and compare it with the format required by the service. Back up your configuration before upgrading; repeatedly switching cores is not a substitute for checking the format.

v2rayN is a desktop client; V2Ray and Xray are projects related to proxy cores. The client generally handles subscription retrieval and parsing. Check core compatibility only if the logs point to a node configuration issue or a core startup failure. Switching cores cannot fix a subscription URL that returns a login page.

6. Auto-update intervals: Check the units, save settings, and runtime requirements

Set up auto-update only after manual updates work reliably. Go to Subscription Groups → Subscription Group Settings, edit the target group, and check the auto-update interval and available update options. Field locations, units, and proxy update settings may differ between versions, so don’t copy a number directly from a screenshot of another version.

1. Check the units first: To update every 6 hours, enter 6 if the field uses hours or 360 if it uses minutes. These are examples; follow the service provider’s rate limits.
2. Confirm what disables updates: To turn off auto-update, use the toggle or the value specified in the field description. Don’t assume 0 means “update now” or “disabled” without checking.
3. Verify after saving: Close and reopen the editor to confirm the interval was saved. A one-time “update through a proxy” action in the menu does not necessarily change the route used by future scheduled updates.
4. Check runtime requirements: Scheduled tasks usually require the client to be running and the network to be available. Don’t expect an update to run on schedule if the computer is asleep, the app is closed, or the proxy route is down.
5. Check the next log: At the next scheduled interval, look for a request entry and check whether parsing succeeded. An unchanged node list alone does not prove that auto-update did not run.

7. Frequently asked questions about subscription updates