Browser error codes

Learn about browser error codes you may have encountered.

Issue: The email and password are secure. But I still cannot register.
Explanation:This problem occurs in network environments that use a proxy with additional permissions. It is then imperative that you contact your IT administrator to have this fixed.
Solution: You can check whether it is really due to your environment.
1. Try to log on to Collaboard with your private mobile.
2. Try to log on to Collaboard from another network. Try it also with different browsers.
3. If you can log in outside your environment, you should contact your IT administrator.

Issue: Secure connection failed
Explanation: The PR_END_OF_FILE_ERROR error message appears when the Mozilla Firefox browser can’t establish a secure connection. It is a Firefox-specific error and won’t appear in any other browser. Thus, this often affects many websites you try to visit, as the problem is on the client-side.
Solutions:
1. Virtual Private Network (VPN) or proxy server interference. A VPN and a proxy server act as a middle man between your computer and website server, hiding your IP address and location. If not configured correctly, VPN and proxy services can trigger PR_END_OF_FILE_ERROR.
2. Incorrect cipher variants. It may happen when you’ve modified SSL settings on your computer or browser. In this case, the browser enforces a cipher version that’s not supported either by Firefox or the website.
3. Corrupted Firefox profile. Synchronization issues between desktop and mobile browsers can corrupt a Firefox profile, triggering the Firefox secure connection failed error.
4. Third-party security software. Antivirus software can sometimes misidentify safe websites and block your access to them.