Okay everyone, seems the new boxes were configured properly and everything.
As a side effect, the datacenter put out boxes on brand server racks and upgraded us to a fiber network connection. This should (in theory) reduce the level of mapservs in game (though please do report them still if they should happen, they might need a kick to restart it).
Nothing seems to be out of place, so we'll consider this resolved.
Reboot has been completed.
