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R6260 ROUTER - INSTALLED NEW MODEM AND NOW ROUTER DOES NOT FUNCTION - SAYS ETHERNET HAS INVALID IP
R6260 ROUTER WILL NOT FUNCTION WITH NEW IDENTICAL COX MODEM. CAN CONNECT TO INTERNET WITH MODEM BUT ROUTER WILL NOT FUNCTION WHEN INSTALLED FROM PC TO MODEM. NO SIGNAL ALLOWED. ERROR SAYS INVALI...
What modem is it?
Try this.
Disconnect everything from both devices. Even coax from the modem.
Power them both down for 2 minutes.
Connect coax back to the modem and power it on.
Wait 2 minutes or for it to fully boot.
Then connect its lan cable to wan port on the router.
Then power the router on and give it a couple minutes to fully boot.
Then try setup.