A:AnswerYou do not need a second modem. You would need a bridge or a router configured as a bridge and would want to turn off your wireless on the AT&T provided modem/router if you plan. To use another wireless router. Otherwise you may run into interference or even UP address conflicts.
A:Answeryes it shows on there list that Model: CM500-100NAS NETGEAR - DOCSIS 3.0 High-Speed Cable Modem - Black is approved.ALSO IT SHOWS THAT THE NEWER Model: CM600-100NAS NETGEAR - DOCSIS 3.0 High-Speed Cable Modem - Black IS APPROVED.THE REASON WHY I'M SHOWING THE NEWER ONE.BECAUSE IF YOUR CABLE COMPANY HAS 16 DOWNSTREAM AND 4 UP STREAM.THEN THE NEW ONE WILL LET YOU GROW IN THE FUTURE BECAUSE THE NEW ONE HAS 24 DOWN STREAM AND 8 UP STREAM
A:AnswerThe following modems are listed as being compatible with and supported by your service provider: Arris TM822 - 2 port 3.0 modem; Arris TM804 - 4 Port 3.0 modem; Arris TM1602 - 2 port 3.0 modem; Arris TM1672 - 2 port 3.0 modem; Motorola SBV6220 3.0 modem; Cisco DPQ3212 3.0 modem. Any DOCSIS compliant modem should be compatible however.