Board Game Arena

Hello my work firewall has Geoblocking setup where all countries are blocked except the US. I setup an exception for BGA, but I am still getting disconnected from server warnings. I can still play the games but the server disconnects makes the games hard to play as I have to manually refresh the window after every interaction.

Can you tell me the IP addresses or ports that I can have whitelisted?

This is not right forum. And you if can change firewall rules surely you know how to resolve IP address from dns name?