C6300v2 modem/router not connecting to internet

[JB45]

New router/modem registered with Comcast and online but not connecting to internet. Comcast says all good on their end. I registered this device with Netgear but is there something else I am missing?

[FURRYe38]

Be sure your devices are connecing to the modem. 

Be sure yoru devices are using automatic IP address assignment and not static. 

Try different devices to see if any of them connect.