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Nighthawk CAX80 won't save configuration data.
I purchased a Nighthawk CAX80 cable modem/router a little over 2 months ago. Netgear support is absolutely useless. The CAX80 will not save the configuration data. I cannot change the ipaddress fo...
I have tried Edge and Firefox. Same result. Tried using the Android app and got the same result. When the router is rebooted it displays it has not been configured yet and I have to go thru the entire process again. I saved a config backup to simplify things a bit.
Something to try, reload the same FW version on to the modem with a wired PC.
https://kb.netgear.com/23960/How-do-I-manually-update-the-firmware-on-my-NETGEAR-router
After it's back to ready, reset the modem and setup from scratch using the erase button:
https://kb.netgear.com/24233/How-do-I-erase-the-configuration-settings-on-my-Nighthawk-router
Be sure to clear out all browser caches.
Then walk thru the setup routine with same wired PC and web browser. Set up the system for your needs.
https://kb.netgear.com/22697/How-do-I-install-my-NETGEAR-router-using-the-router-web-interface
Recommend setting the default DHCP IP address pool range to the following after applying and a factory reset: 192.168.#.100 to 192.168.#.200.
https://kb.netgear.com/24089/How-do-I-specify-the-pool-of-IP-addresses-assigned-by-my-Nighthawk-router
Then save off a back up configuration to file soon after all has been setup:
Let us know if you can get this completed.