Solving the Nextcloud Talk “Failed to establish signaling connection. Retrying” Error: A Chrome-Specific Conundrum
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Solving the Nextcloud Talk “Failed to establish signaling connection. Retrying” Error: A Chrome-Specific Conundrum

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If you’re reading this, chances are you’re frustrated with the “Failed to establish signaling connection. Retrying” error that’s plaguing your Nextcloud Talk experience, specifically on Google Chrome. Fear not, dear reader, for we’re about to embark on a troubleshooting adventure that’ll have you chatting with friends and colleagues in no time!

What’s causing the error?

Before we dive into the fixes, it’s essential to understand the root cause of this issue. The error message typically appears when Nextcloud Talk can’t establish a connection to the signaling server. This server is responsible for facilitating real-time communication between users.

In Chrome’s case, the problem often lies with the browser’s strict security policies, which can interfere with WebRTC (Web Real-Time Communication) functionality. WebRTC is a set of APIs that enable real-time communication capabilities in web browsers.

Fix 1: Disable Chrome’s WebRTC Stun Server Feature (Temporary Solution)

This method will help you bypass the error, but keep in mind it’s not a permanent fix. We’ll explore more robust solutions later.


chrome://flags/#enable-webrtc-stun-origin

In Chrome, navigate to the above URL, disable the “WebRTC Stun Server” feature, and restart your browser. This will help you connect to Nextcloud Talk, but it might not resolve the issue entirely.

Fix 2: Configure Nextcloud Talk Server Settings

Let’s dive into the Nextcloud Talk server configuration to see if we can resolve the issue.

Login to your Nextcloud server as an admin and navigate to the “Talk” settings:


 Apps > Talk > Administration

Look for the “Signaling server” section and ensure the following settings:

Setting Value
Signaling server URL https://your-nextcloud-instance.com/talk/ws
Signaling server protocol wss

Save the changes and try connecting to Nextcloud Talk again.

Fix 3: Enable WebRTC in Nextcloud Talk

Sometimes, WebRTC might be disabled in your Nextcloud Talk instance. Let’s enable it:


 Apps > Talk > Administration

Scroll down to the “WebRTC” section and toggle the switch to enable WebRTC:

WebRTC toggle switch

Save the changes and restart your Nextcloud Talk session.

Fix 4: Check Firewall and Port Configurations

Firewalls and port restrictions can block WebRTC connections. Ensure that:

  • Your Nextcloud server’s firewall allows incoming traffic on ports 3478 (UDP) and 5349 (TCP).
  • Your local machine’s firewall allows outgoing traffic on the same ports.

If you’re using a reverse proxy, double-check your proxy configuration to ensure it’s not blocking WebRTC traffic.

Fix 5: Update Nextcloud Talk and dependencies

Outdated dependencies can cause issues with WebRTC functionality. Update Nextcloud Talk and its dependencies:


sudo -u www-data php occ maintenance:update:nextcloud-talk

Restart your Nextcloud server and try connecting to Nextcloud Talk again.

Fix 6: Clear Browser Cache and Cookies

A simple yet effective fix: clear your Chrome browser cache and cookies:


chrome://settings/privacy

Select “Clear browsing data” and choose the following options:

  • Browsing history
  • Cookies and other site data
  • Cached images and files

Click “Clear data” and restart Chrome.

Fix 7: Disable Chrome Extensions (Temporary Solution)

Malfunctioning Chrome extensions can interfere with WebRTC functionality. Try disabling all extensions and then re-enabling them one by one to identify the problematic extension:


chrome://extensions/

Toggle the switch to disable all extensions, restart Chrome, and try connecting to Nextcloud Talk again.

Conclusion

By following these steps, you should be able to resolve the “Failed to establish signaling connection. Retrying” error in Nextcloud Talk on Google Chrome. Remember to investigate and address any underlying issues with your Nextcloud server configuration, firewall settings, and browser extensions.

If you’re still experiencing issues, feel free to reach out to the Nextcloud community or seek further assistance from your server administrator.

Happy chatting!

Frequently Asked Question

Stuck with the pesky “Nextcloud Talk Failed to establish signaling connection. Retrying” error on Chrome? Don’t worry, we’ve got you covered! Here are some FAQs to help you troubleshoot and resolve the issue.

What exactly is this “Failed to establish signaling connection” error, and why does it only happen on Chrome?

This error occurs when Nextcloud Talk is unable to establish a connection with the signaling server, which is necessary for real-time communication. The error only appears on Chrome because it’s related to WebRTC (Web Real-Time Communication) implementation in Chrome, which is different from other browsers.

Is this error caused by a Chrome extension or plugin?

Possibly! Some Chrome extensions, such as ad-blockers or VPNs, can interfere with WebRTC functionality, causing the “Failed to establish signaling connection” error. Try disabling your extensions one by one to see if the error resolves.

Could my network configuration be the culprit behind this error?

Yes, network issues can certainly cause this error. Check your firewall settings, as they might be blocking the necessary ports for WebRTC communication. Also, ensure that your network is stable and not experiencing any packet loss or high latency.

Are there any Nextcloud Talk settings that I can tweak to resolve this error?

Yes, you can try adjusting the Nextcloud Talk settings in your account. Go to Settings > Administration > Talk and check the “Signaling server” and “STUN server” settings. Ensure that they are correctly configured and pointed to the correct servers.

What if none of the above solutions work? Where can I seek further assistance?

If none of the above solutions work, you can seek help from the Nextcloud community forums, where you can find dedicated sections for Talk and WebRTC issues. Additionally, you can also reach out to your system administrator or Nextcloud support team for further assistance.

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