What should you do if your subscription link won’t update? This guide covers “update timed out,” “download failed,” and “parse failed” errors in clients such as Clash, V2Ray, and sing-box. It walks you through checking the link, network, DNS, and client in order, helping you distinguish an expired subscription from a local environment issue. A failed subscription update doesn’t mean all your nodes are down, so keep your existing configuration for now instead of deleting it or reinstalling the client.
Check the error first to see where the process is stuck
- Timeout or connection refused: Start by checking your current network and the connection method used to download the subscription.
- Domain resolution failed or “no such host”: Focus on DNS, or check whether the subscription domain is still valid.
- 401 or 403: This may indicate expired authorization, access restrictions, or a security check. The status code alone does not prove that your IP has been blocked.
- 404 or parse failed: The address may have expired, the response may not contain subscription data, or the format may be incompatible with the client.
Work through these steps in order to avoid making things worse
- Back up your configuration and verify the link. Copy the subscription address from your client and compare it with the latest address on the provider’s site. Check for missing characters, extra spaces, or a webpage URL copied by mistake. Subscription links often contain access credentials, so don’t post them in public chats or enter them on unfamiliar checking sites.
- Check your device’s date and time, and enable automatic time synchronization. A significantly incorrect clock can cause HTTPS certificate verification to fail. If you see a certificate error, don’t try to fix it by turning off verification.
- Leave your other settings unchanged, switch between Wi-Fi and a mobile hotspot, and try again. If the update fails only on one network, the issue is more likely related to that network’s routing, DNS, or access policy than to the subscription itself.
- Check whether the client offers an option such as “update through proxy” or “subscription download proxy.” If so, test both a direct connection and an existing working proxy. If your old nodes are unavailable, forcing the download through one of them can lead to a loop of failed updates.
- Get a subscription compatible with your current client from the provider. Clash configurations, general-purpose share links, and sing-box configurations are not always interchangeable. If importing fails, check the format first, then consider updating the client.
How do IP, DNS, and browser settings affect updates?
A change in IP address may affect access checks or network reachability, but frequently switching exit points isn’t necessarily helpful. If you get a 403 or a verification page, check the provider’s instructions instead of repeatedly refreshing. Being able to open the link in a browser doesn’t mean the client can update: the browser may use secure DNS, a separate proxy, or logged-in cookies, while the client usually requests the subscription address directly.
If the error clearly points to DNS, try disconnecting and reconnecting to the network, and check whether your system is using a custom DNS server that no longer works. If necessary, temporarily switch back to automatic DNS, then test again. The client may not use the secure DNS configured in your browser. Don’t change your DNS, proxy mode, and subscription address all at once, or it’ll be hard to tell which step worked.
Still having trouble? Keep a record of these details
Note the client name and version, when the error occurred, the status code, and the results after switching networks and update methods. Before sharing logs, redact the full subscription address, tokens, and personal information. If the same error occurs on multiple networks, ask the provider whether the link has expired or the service is experiencing an issue. If you’re using this site’s free nodes, also check the corresponding page for the latest update time and format requirements. There’s no need to wipe your entire configuration to fix a single subscription.