So I tried to play both GoodFella and XXXplosive tonight, but for some reason Live wouldn't let me connect to them. I kept getting an error message telling me to go to the online FAQ. After doing a little searching on the internet, I found something that told me to enable UPnP on my router, so I did, and it SEEMED like maybe it made a difference. I didn't get to test it with anybody I know it wasn't working with, but before every now and then the same error would pop up when it was searching for a match, and I found 5 or 6 after I changed that with no problem.
If not, I'll have to hope somebody else can come up with a solution...
And Matt, I'll actually be home during the day tomorrow, but not in the evening. You probably won't be able to play, but I'd be around until about 5:30 EST.