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albreyer's avatar
albreyer
Aspirant
Mar 11, 2024
Solved

C7800 Nighthawk X4S AC3200 WiFi Cable Modem Router won't factory reset

Try as I might, holding the reset button forever, using the 30/30/30 approach, etc., I cannot seem to get the admin password to change back to password.   After 3 failed attempts, I continue to get a...
  • FURRYe38's avatar
    FURRYe38
    Mar 11, 2024

    Does this happen with a different browser? Try MS-Edge, Firefox or Opera.

    Disconnect the ISP coax cable from the modem as well before trying a factory reset. 

     

     

albreyer's avatar
albreyer
Aspirant
Mar 11, 2024

I'm trying on my computer via a browser:

http://192.168.0.1/

 

and also trying with the Nighthawk app on my phone.

 

The browser does recognize the serial number.   I tested this by putting in a bad one on purpose once to see what would happen that way (I don't get the security questions).

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User
    Mar 11, 2024

    Does this happen with a different browser? Try MS-Edge, Firefox or Opera.

    Disconnect the ISP coax cable from the modem as well before trying a factory reset.