Xbox will not stay connected to LIVE

Okay, so I have a 4GB Slim that keeps losing connection to Xbox Live for some reason. Like I turn it on and it is connected, then 10-20 minutes into playing it kicks me out of my party and says I've lost connection. From there I can restart the Xbox, which just restarts the cycle like before- or I can go to network settings and test the connection, which logs me out, then says it has good connection, and then I can play for another 10-20 minutes before being kicked.

- It's not the ISP or the Router, as two other people have brought over their Xboxs over and had no problems at all

I'm thinking it may be a hardware problem or something, I was wondering if anyone else has had this problem or knew how to fix it..

Could be a hardware issue. Is it wired or wireless? try the opposite of what you are doing now and see if you get the same problem. You could also try assigning a static IP address to the device, just make sure it's outside the DHCP scope of you router. I would try this to start off with.

This happened to me as well yesturday! After about 20 mintues it reconnected though.

I think it's XBL not your system because i have had and several of my friends have had the same problem lately. As a guess could be a cyper attack against them, or they are working on XBL.