FWIW, this was my problem.
ARRIS SurfBoard SVG2482AC (** OWNED). Brand new customer and modem. Do not have access to xFi, since I own the equipment (apparently??).
Odd thing was that only iOS devices (iPhones, iPad, and iPod) were automagically paused. All other devices were able to join WiFi network and browse without issue.
Did the support tech thing... restart devices... reboot router.... end result > You need to call ARRIS. ARRIS response > Comcast owns the firmware, take it up with them.
This should be step # 1 in the troubleshooting handbook!
... View more