I recently broke up with my exgf and left my modem router there and just got New gateway from xfinity, well my problem is that my gateway is not supporting 2 xbox 360( roommate and mine) but I had no problem with multiple xbox on my previous setup. Now, my question is, can i just switch my current gateway with my old router/modem setup at her house with out any major problems or even better not having to put up with comcast customer service, our lack there of. Both houses use comcast/xfinity for internet service. Any help with this would be greatly appreciated. Thank you in advance