I managed to make it into a server in USA with 1.7.2.2 off of six launcher, played for around 20 minutes before finally losing connection. there a couple of servers with the right update, just have to keep trying to get in them
according to six launcher there are around 30 games updated to 7.2.2 of those 10 are USA and from what I can tell, the ones that are working properly are filled up
from what I can see this is an issue with incorrect server/client version compatibility. just have to find a server that is up to date, which seems almost impossible atm