This is a slightly different issue but I do feel like it might be related. Shortly after the patch people from other areas (so far we have had reports from Bulgaria, Macedonia and Georgia) can't connect to the EU DCs at ALL. We get only a 2002 lobby server error. We can connect to the other DCs, but not tot he EU ones. This seems like too much of a coincidence to not be related. There's another thread here but we still have no response at all....