No games showing in Lobby + error trying to join

Hey guys,

I recently installed AoE 2 DE on Steam. Currently running the latest version. For some reason my public lobby is almost completely empty (the odd game pops up for a second). I can see matches in Spectator, so I know there should be a vibrant lobby. I can also join private matches if they’re hosted by a friend.

I tried running Aoe2 net launcher for AoE2 DE to see lobby games. Great I know there’s matches … but I get this error when I try to join:

I tried this as a workaround. Any ideas as to what might be going on? I’ve had the issue for about 2 days consistently now since having installed the game. Internet speed / network all very healthy.