I recently upgraded to a faster modem netgear cm1100. Now I cannot get xfinity beta to stream to any of my tv's. All other apps stream with no problem. Xfinity beta keeps saying it is not attached to my home network but it is???
I can stream on my phone and laptop but not any of my roku's or my roku tv
run the smart phone/tablet my account app. signin and go to the internet tab. touch the modem shown and compare the 'serial number' shown and be sure it matches character by character exactly to your modem's HFC MaC Address.