I've been having a similar issue...
Just got the new CGN today after upgrading from the old extreme package..
my mumble has been randomly disconnecting all day... on top that i find that when for example i try to connect to a Dayz server (its a game) my Mumble will disconnect 80% of the time and rejoin in 5 seconds.
Now this didn't happen when i was on extreme, and i can't for the life of me figure it out.
Im wired, so its not QoS.
