[2023] Nakama MP problem help reqested. It happens in vanilla too

Which I just did…. by removing all inappropriate caps and the excessive use of exclamation marks.

A little bit more information might be useful as well… is it the Steam version or which one? In addition: was the proper login name being used? Was the login conducted to the launcher at all?  

Have you followed these instructions?

Barbarossa 1.11.13 - Nakama Crossplay - Checksum d173

Hello everyone! We just released patch 1.11.13 for "Barbarossa" on Steam and Microsoft Store. The new checksum is d173. This update introduces the possibility to play multiplayer games across stores (such as Steam and Microsoft Store) using the... forum.paradoxplaza.com