Can’t Update Your Subscription Link? Troubleshoot Your IP, DNS, and Browser Settings Step by Step

This article addresses a common issue: what to do when a subscription link won’t update. If clicking “Update subscription” in clients such as Clash, V2RayN, or sing-box fails, keeps spinning, shows a network error, or leaves you with no nodes after updating, follow the steps below to check your IP, DNS, browser environment, and client settings. These steps are suitable for everyday users.

1. First, check whether the subscription link is accessible

A failed subscription update doesn’t necessarily mean the client is broken. Often, the current network simply can’t access the subscription URL. Copy the link and paste it into your browser’s address bar. If a text file downloads or you see node configuration content, the link is probably working. If you get an inaccessible page, a timeout, or a certificate error, continue troubleshooting your network environment.

1. Make sure the subscription link was copied in full, especially the http or https prefix.
2. Check whether the link has expired or been reset. If necessary, return to the node page and copy it again.
3. If this site’s free nodes page provides a new subscription URL, replace the old link with the latest one.

Note: Some subscription links don’t display a user-friendly page in your browser and instead download a file directly. This is normal.

2. Check your IP environment: your current network may be restricted

If the same subscription updates over mobile data but fails on Wi-Fi, the issue is usually related to your current IP or network gateway. Some public Wi-Fi, company networks, and campus networks block proxy-related domains, preventing the subscription from being fetched.

• Switch networks: change from Wi-Fi to mobile data, or try a different Wi-Fi network.
• Turn Airplane mode on and off so your phone can obtain a new IP.
• On a computer, restart your router and wait for your public IP or network gateway status to change.
• If your client supports updating subscriptions through a proxy, connect to an available node first, then try updating.

How to tell: If the same link behaves differently on different networks, the problem is most likely not the subscription link itself, but access restrictions affecting your current IP or carrier’s network.

3. DNS issues: failed domain resolution can prevent updates

Subscription links usually use a domain name. If DNS resolution fails, the client may report a timeout, a host not found, or a network error. Try changing your system DNS to a common public DNS server, such as 1.1.1.1, 8.8.8.8, or 223.5.5.5. After changing it, restart the client and try updating again.

Windows users can also open Command Prompt and run ipconfig /flushdns to clear the DNS cache. Android and iOS users can refresh DNS resolution by toggling Airplane mode or restarting their network connection. If you use a Clash-based client, check whether any DNS rules in the configuration are set incorrectly.

4. Your browser and system environment can also affect copying and access

Some update failures appear to be network issues but are actually caused by copying the wrong link. For example, the copied URL may include spaces, line breaks, or Chinese punctuation, or a browser extension may be blocking a redirect. Try opening the subscription page in an incognito window and copying the full link again.

• Disable ad blockers, script blockers, and privacy extensions, then try again.
• Don’t copy the link from a preview card in a messaging app. Whenever possible, copy it using the button on the original webpage.
• Make sure your system clock is correct. An incorrect time can cause HTTPS certificate verification to fail.
• If your client is outdated, it may not support the subscription’s current format. Update to the latest version.

Avoid clicking Update repeatedly in quick succession. Too many requests in a short period may trigger a temporary restriction. After a failed attempt, wait a few minutes, then switch networks or clear the cache before trying again.

5. Steps to follow in the client

If you’ve confirmed that the link works, follow these steps to reimport it into your client:

1. Delete the old subscription configuration to avoid confusion between entries with the same name.
2. Paste the subscription link again and make sure there are no spaces at either end.
3. Click Update subscription and wait for it to finish. Don’t switch networks during the update.
4. After updating, select a node, test its latency, and then try connecting.
5. If it still fails, enable the client’s logs to see whether the issue is DNS, TLS, a timeout, or a parsing error.

A successful subscription update doesn’t guarantee that the nodes will connect. Updating a subscription only fetches the node list. You still need to check whether the nodes are active, whether the client supports their protocols, and whether your current network allows the connection.

In short, if a subscription link won’t update, first verify the link, then try a different IP or network, troubleshoot DNS, and finally check how the link was copied and whether your client is up to date. Following these steps in order usually helps you pinpoint the issue quickly. This site regularly compiles free nodes and user guides. If an older subscription stops working, check first for an update notice.