Which ports have to be open to communicate with Firebase Database (not FCM messaging)?

Question

I have written a Windows service in C# which connects to the Firebase Database and stores data. For connection and database communication, I use a NuGet Packages called \"Fi

Answer 1

Firebase Authentication and the Firebase Realtime Database both use HTTPS to communicate between the client and the server. This means that all communication goes over port 443.

The database communication uses web sockets over port 443 when possible. You might want to check if the firewall does something to specifically block web sockets.