I am renting the XB6-T ROUTER from Xfinity. I like the having the ability for my friends and family to connect to "xfinitywifi" SSID. My question is there any 3rd Party Cable Modems Routers with build in wifi that support the "xfinitywifi" SSID?
Only leased gateways from Comcast have the xfinitywifi hotspot. A lot of routers do have the ability to broadcast a guest network, that might be an option for you.