I've queued 3 times now. First time, got a battle in (was very cool, I thought.) Second time, we were "waiting for players" in the arena for about 2 minutes, then back to world. No timeout penalty for that one. Third time, got into the arena, crash to desktop, penalty queue. Rough start so far...

try disbanding the group and reforming, that worked in beta. Usually if it doesn't send you into match right away, either there are not enough people queuing (which seems unlikely since it's live server), or something's wrong, stop queue and start again.

On PTS the only time we had to wait for super long queue was when there weren't enough people for full match with at least 2 players per team. Otherwise, exiting the queue and restarting usually got you into match quickly.

I'm having this problem too. As far as I know every person I know (on NA at least) is having this issue. I can queue into battle grounds solo. However, when I try group queue and error message states that someone in the group does not have the DLC required. Everyone in the group has the DLC and can solo queue fine, but when we group up we can't queue.
@ZOS_GinaBruno @ZOS_JessicaFolsom is this issue known? It needs to be resolved quickly because as it stands BGs are not as fun to solo queue as they would be with my friends on my team with me.