Stuck on Initializing Xbox Series

Hello, I’m having trouble entering the game lobby on my Xbox Series S.
After starting the game, I press the A button to connect. A loading circle appears, followed by the message "Initializing", and then I get the error: "Unable to connect."

What I’ve tried so far:

• Rebooting the Xbox.
• Using a different internet connection (via smartphone hotspot).
• The PC version of the game works fine on the same internet connection, so I don’t think it’s a network issue.
• Other games via internet on Xbox (Marvel Rivals works fine, Xbox Store too)

Possible Solution:

If possible, could you provide the IP addresses or domain names of EA’s Xbox servers? I’d like to try pinging them from my PC to check for connectivity issues. (I live in Russia, it could be problems with cloudflare)