netgear AX6/AX5200 RAX48-100NAS DNS address change not working

[CsGyB]

Hi,

I have a netgear AX6/AX5200 RAX48-100NAS router and I wanted to change the primary and secondary DNS addresses to the servers OpenDNS uses. I was not able to make the change as after I hit the 'apply' button the changes were never applied or saved.

I tried to use both dynamic and static IP address options but they didn't make a difference.

Has any one encountered this problem before? Any thoughts on what I do wrong and what could be the remedy?

[plemans]

have you tried using a different browser or pc? 

[CsGyB]

Yes, I tried PC's running Windows 10 and Ubuntu Linux. I used Microsoft edge, Chrome and Firefox browsers without success.

[plemans]

what modem/gateway do you have? 

[CsGyB]

I own a NETGEAR CM700-100NAS cable modem

[plemans]

Are you using ipv6?
Have you tried a simple factory reset/reinstall?

[CsGyB]

I'm not tech savvy enough to use ipv6 but if you feel it might help I will try to research it and learn how to set it up.
I factory reset my router twice to no avail. I tried to adjust the DNS setting via the nighthawk app but they were grayed out, wasn't allowed to make any changes

[plemans]

You can try the auto-detect with the IPv6. works in most cases. 

If it doesn't, then try downgrading the firmware a version.