What should you do if your subscription link won’t update? This article walks you through troubleshooting the link, network, DNS, and client—in that order—and distinguishing timeouts, expired access, and format incompatibility so you can avoid reinstalling the app unnecessarily. It applies to Clash-style clients, V2Ray, and sing-box; menu names may vary by version.
Check the error first and keep your existing configuration
Open “Subscription Management,” try a manual update, and check the log. A timeout is usually related to the network or proxy route; 401 or 403 errors may involve credentials, permissions, or access restrictions; a 404 may mean the address has changed; and a parsing error points first to the returned format. Don’t delete a subscription that still works—back up your configuration and note the error first. If you take a screenshot, hide the token in the link.
Check the link and network in order
- Copy the subscription address again from the original source page, and make sure it contains no spaces, line breaks, or missing characters. If the QR code no longer works, try the plain-text address. Don’t use a link to an information page in place of the subscription link.
- Check your device’s date and time, and enable automatic time synchronization. An incorrect time can cause HTTPS certificate verification to fail; don’t work around this by disabling certificate checks.
- Try updating over both Wi-Fi and mobile data. If it fails on only one network, the issue is more likely related to that network’s DNS, access restrictions, or outbound connection than to the subscription itself.
- Check whether the client offers “Update directly” or “Update through proxy.” If the current node is unavailable, updating through a proxy may also fail. If the subscription domain can’t be reached directly, test a proxy update using a node that still connects. Change only one setting at a time.
- If you see “Unable to resolve hostname,” reconnect to the network and check the system DNS. You can temporarily restore automatic DNS or test with a trusted DNS resolver. Don’t change several settings at once, or it will be harder to identify the cause.
How do IP, DNS, and the browser environment affect updates?
Switching networks changes your outbound IP. If you get a 403 or 429, you may be encountering an access policy or request-rate limit, but the status code alone doesn’t prove that your IP has been blocked. Stop refreshing repeatedly and follow the provider’s instructions; don’t keep switching addresses to try to bypass restrictions.
DNS only resolves domain names to addresses; it can’t fix an expired token or an incorrect format. Browsers and clients may also use different DNS settings and proxy routes, so being able to open the link in a browser doesn’t guarantee that the client can update it.
If the browser shows a login page, CAPTCHA, or webpage text, that usually isn’t subscription content the client can read directly. Browser extensions, cookies, and secure DNS can affect webpage access without affecting the client. Don’t submit a private subscription link to an unfamiliar checker or conversion site—the link may function as an access credential.
What if the download succeeds but the import fails?
Check that the subscription format is compatible with your client: Clash configurations, generic share links, and sing-box configurations aren’t necessarily interchangeable. Use the corresponding option provided by the publisher whenever possible, and update the client through a trusted source if needed. Import full configurations and node lists separately if the app requires it.
If the problem persists, note the client name, version, error, and tests you’ve already tried, then contact the publisher to confirm whether the address has been revoked or the token has expired. If you’re using a free node from this site, also check when it was last updated and which clients it supports. A successful subscription update doesn’t guarantee that the nodes will work—test the connection separately afterward.