@djMot timeout set on DM3 is the same as the other servers. Other cause of this which is out of our hands is that activision's validation server is not releasing the game key right away.
Was just in the Redline server without issue and as well loaded the map alcatraz so not clear on why anyone would be having trouble getting in. This server has run before many times, only change this time around is the mixed game type. if the problem persists, then will try straight DM, but there's no known issues with the maps that are in play. As for DX9 errors, perhaps a local issue and the version of DX on the machine.
Rotation on DM3 will be swapped out sometime today.