I'm in Illinois. Seems to only happen when it trys to put me in a game that is already in progess. Comcast internet. It keeps trying to balance teams over and over too. NAT is open for me. Tryed clearing cache. Re applyed game patch and re-downloaded profile nothing helped.
I'm having that same issue and when I go to games it keeps flipping teams and saying "Need more players to balance teams" when there are balanced teams. My Nat was strict when the issue started happening, so I rebooted my router. Now my nat is open and its still doing the Errors.
Message was edited by: 2SKARE - Put a little more info in.
I just started seeing this last night as well (Wisconsin here). My NAT was Moderate until last night prior to upgrading my router firmware, and it's now Open. I started playing and the matchmaking was way worse than before (same issues you guys have been seeing). I thought it was something I did with my router, but it appears to be bigger than that.
I wasn't having any connection, matchmaking or other problems (occasional lag) prior to last night, thankfully. I was able to get into various games, but every second or third game would kick me out with the Error Modifying Session message.
Hopefully it improves.
Started happening to me last night. Played a few TDMs fine then this message started popping up. Couldn't get into another match so I decided to call it quits. The thought alone of me trying to join a match in this crappy game and getting this message and still trying to join a match repeatly afterwards makes me sick to my stomach. Hopefully this gets resolved ASAP.
Comcast and my NAT is always OPEN
I asked this in another thread with folks having the same issue. Some are thinking that this might be a regional issue. I was wondering that as well. I found some information that might help us find out. If you head to Multiplayer > Option > System Info(Back Button) it will give you your geographical region. Mine is listed as 36
I went to blackops2/status and this is what I saw
I'm expecting it to be one of the fixes in the upcoming update:
It is getting quite irritating at the moment.