AR750S DHCP assigned wrong DNS

Im using GL-AR750S with latest firmware.
On android, I saw DHCP assigned secondary DNS comes with Google DNS , why?
Is there any option to change in Router admin panel?

Maybe it is problem of your phone.

You can change custom ddns in the router and choose override all dns of clients.

Nope, my phone is Oneplus 6, I already enable and still having this issue:sweat_smile:

Then can you pls check using to see what is your real dns?

Hmm, it shows everything correct. but when my custom DNS servers goes down, it use Google DNS instead.

Maybe it is because your upstream router assigned google DNS. I have the same problem here. My ISP uses google DNS by default.