How to troubleshoot "Error - Unauthenticated"?

Explanation

When the frontend of an application cannot communicate with the backend, it may result in a “Error - Unauthenticated”. This error message can indicate that there is an issue with the VPN, firewall, browser settings, or script blocker extension.

Ways to resolve this error

1. Disable VPN: If you are using a VPN, try disabling it temporarily and see if the error disappears. Some VPNs can block certain types of traffic, which could cause the error.

2. Check firewall settings: Make sure that your firewall is not blocking the traffic between the frontend and backend of your application. Check the settings and whitelist the necessary domains.

3. Try another browser: Some browsers like Brave have built-in script blockers that can prevent the frontend from communicating with the backend. Try using another browser to see if the error disappears.

4. Disable script blockers: If you have a script blocker extension like NoScript or uBlock running, try disabling it temporarily and see if the error disappears.

5. Try another network: If none of the above solutions work, try connecting to another network and see if the error disappears. It is possible that your current network is blocking the traffic between the frontend and backend.

By trying these suggestions, you can fix the FirebaseError and ensure that your frontend and backend can communicate effectively.