Im having isssue trying to join a friend

every time i try join my friend it says this error code " Unable to connect to the host. Verify that the connection settings are correct. If you still cannot connect, contact the room host and verify that the host is properly configured with the external port forwarded." but I can join random peoples lobbys

In order for us to provide better support, we need to see the log generated by citra. This guide will walk you through how you can obtain the log file: How to Upload the Log File

Citra does not host your multiplayer rooms for you. Therefore, when you host a room, you are the server. This requires you to forward the port that Citra needs in the host’s router’s settings. For that, it’s best to consult that router’s manual. For some more info: