I think I know: Antivirus. It might block some ports.
I'm sure it's not this for some players, or at least me. My antivirus is the same as before, but i loose connection ingame while still talking freely in TS, wich has never happened before. IT's kind of irritating, but i get used to it. Sometimes, checking the forum and such, after alt-enter + escape after being dead, i actually loose connection then (so because of RAM or slow computer maybe) but when i'm only playing cRPG and i still loose connection, it's... strange.
Espu told us a possibility 19 days ago, i'd very much like a confirmation if it's my shitty PC, or if it's unrelated and i can't do anything about it. Or it's a host problem wich occurs more often for shitty PC, for all i know.