Unable to join in zone
I would assume you are both on EU or NA servers right? Can you get in the same dungeon instance?
We can join each other, fine. We can join with a LFG add. We can’t join anyone in our new guild, for some reason.
Well most likely that is due to the people you are trying to join are EU. You can talk join guilds and whisper and I believe party people who are on different sever based locations but you can’t join their shards.