This guide addresses a common issue: what to do when a subscription link won’t update. If updating a subscription in clients such as Clash, V2RayN, or sing-box fails, times out, shows a blank screen, or reports a network error, follow these steps to check your IP, DNS, browser environment, and client settings so you can restore node list updates as quickly as possible.
1. First, check whether the subscription link itself is working
Many update failures aren’t caused by a faulty client—the link may simply be inaccessible. Copy the subscription link and check it using the steps below instead of repeatedly refreshing it in the app:
- Paste the subscription link into your browser’s address bar and open it. Check whether it downloads configuration text or automatically saves a file.
- If you see a 404, 403, expired, or unauthorized message, the link may no longer be valid, and you’ll need a new subscription.
- If the link opens in your browser but the client can’t update, focus on the client’s proxy mode, DNS, and system network settings.
- If this site’s free nodes page offers a new subscription, copy the latest link and import it again to avoid using an outdated cached address.
Note: Subscription links are usually case-sensitive. Make sure you don’t miss any trailing parameters or include extra spaces when copying.
2. IP issues can prevent subscription updates
Some subscription addresses restrict unusual access, or your current network may have an unstable connection to the subscription server. Common signs include the link not opening in a browser or the client reporting a timeout or connection reset. Try the following:
- Switch networks: try using a mobile hotspot instead of Wi-Fi, or vice versa.
- Turn the client proxy off and back on, and make sure you aren’t trying to update while offline.
- If global proxy mode is enabled, try updating via a direct connection. If that fails, try updating through the proxy instead.
- Restart your router to get a new public IP address, then try again.
Key point: Subscription updates use the network connection to access the subscription address, which may differ from the connection used by your nodes. So, working nodes don’t necessarily mean the subscription will update successfully.
3. DNS and your browser environment can also affect updates
DNS resolution issues can send a subscription domain to the wrong address and cause updates to fail. Try temporarily switching to a common public DNS server in your system’s network settings, or enabling the client’s built-in DNS and testing again. After making changes, clear your DNS cache and restart the client.
Your browser environment is also worth checking. Extensions or privacy add-ons may block subscription downloads, and company or campus networks may restrict access to certain addresses. Try opening the subscription link in a private window or using a different browser. If it works in a private window, the problem is likely caused by a browser extension or cached data.
4. Practical fixes in the client
The options may have slightly different names in each client, but the general approach is the same:
- Clash clients: Right-click the subscription profile and select Update. If it fails, delete the profile and re-import the URL.
- V2RayN: Check that the address in “Subscription Group Settings” is complete, then click Update Subscription.
- sing-box clients: Make sure the configuration source hasn’t been disabled. If needed, add the remote configuration again.
- All clients: Sync your system clock and close other proxy software to avoid port conflicts.
Don’t focus only on the error message. Also check whether the last-updated time changes, whether the node count is 0, and whether the configuration file is empty. If updates continue to fail, delete the old subscription, restart the app, and import it again.
5. Quickly identify where the problem is
If neither your browser nor your client can open the subscription, the link may be invalid, or there may be an IP or DNS issue. If the link opens in your browser but fails in the client, the cause is more likely the client’s proxy mode, permissions, or cache. If it fails only on one network, that network is probably imposing restrictions. Following these steps in order should help you identify why your subscription link won’t update.
Final tip: Keep a backup subscription source, update your client regularly, and check that the link works before importing it. This can save time troubleshooting during an unexpected disconnection.