ok, you take a few days off and everything goes to hell.
I learned something new about DayZ Launcher. If a server is not showing up, the “Check Server”. So if The Dead Return is not showing up, do that (use IP : SteamQueryPort / 220.127.116.11:2303). That way if I’ve forgotten to fix it, you’ll catch it.
Anyway, if you don’t see it but the server is up, then follow this post to connect directly.