MP network issues with new patch?

Played about 10 games in the last two days, with relative ease. However since i got the new patch a few hours ago, all i get is

"You have been disconected from the NAT Facilitator."

Every single time.

Its not my kit, it worked fine pre patch, in fact i played 3 games just before the patch kicked in. Spent two hours trying, i can no longer connect to custom games, skirmish or pantheon, all will come up with this error after a few mins of trying to connect.