Ok so about the past few weeks my Xbox keeps signing me out. I have checked all my router settings and asked my wife if she down graded our internet connection. The answer to that is: My router is fine, and NO she did not downgrade. When I log into XBOX live I attempt to join my buddies for a co-op game of Dead Island or the Battlefield 3 BETA and it will either boot me from the game immediately or sign me out and kick me from the party before the game loads. Other times I will be at the dashboard in a party and it will sign me out of just kick me from the party. Sometimes it also causes my XBOX to lock up. Some of my friends are having the same issues right now and it is frustrating us all. Considering we are paying for the internet and $60 a year to subscribe to use this service and we CANT even use it right now. This happens on a regular basis, and last night it happened continuously for 4 hours which was frustrating.
I have ATT as my service provider, and I have a new XBOX "slim" model using the internal wireless adapter.