Yes grant it is still happening,
yesterday and last night i played and hosted fine without any problems turned off pc and today turned on. and since then i haven't beeen able to play a game.
also i see only 2 tunnels with a ping ? has that anything to do with it? cus with the cnc4 i had a lot more good tunnel pings now they are all unknown. really disapointing when you are having a day off
edit: i added a tunnel from my own adres and even that comes up with unknown ping