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aett's avatar
aett
Tutor
Oct 01, 2020
Solved

R6400v2 won't detect internet connection

Just got off the phone with Comcast after a few hours, and they suggested I go straight to Netgear for help with my R6400v2 router.   I had a CM700 modem, but my family upgraded to a gigabit connec...
  • plemans's avatar
    plemans
    Oct 01, 2020

    do this. 

    Factory reset both the modem and the router. Push and hold reset for 7-15 seconds while their powered on. 

    After the reset. power both down and disconnect everything from both (including coax)

    then connect coax back to the modem and power it on. give it several minutes to fully boot. 

    Then connect a known good ethernet cable from modem to wan port on router. 

    power the router on, give it several minutes. Attempt setup. 

     

     

    With the Arris CM8200 you can follow the same procedure. just make sure that nothing else is plugged into the modem. Only have the netgear router connected to port 1. leave port 2 empty. It has 2 ports but only 1 port can be used on it with spectrum, cox, xfinity. that other port is only useful if you have wan port aggregation (R6400 doesnt') or if your isp supports multiple public ip address (most isp's dont support this)