cheers folks!

i have seen many threads about my problem but no one of them seem to fit exactly.
look, ive been playing crysis 2 multiplayer since crysis 2 was released, and i had allmost no problems, everything ran fine and no login issues.
yesterday (tuesday, 3 may) in the morning (AFTER the 1.4 patch) i could login and play the game like normal.
then, hours later i ran the game again, clicked on "login" and it says: "an error has occured. please check your network connectivity". since morning i changed NOTHING in my configuration, firewall and ports were still open.
ive tried to disable my firewall (eset smart security 4, windows firewall) and reinstalling the game. used a diffrent connection too, wich worked erlier. :/ nothing seems to help, im getting still that error. again: i did not change any of my network configurations, crysis 2 or on my laptop. anybody know how to fix this?
really annoying

greetings,
dy0r

PS: sorry for my bad english!