I want to undo some of my setup on my network so I can redo it in a different configuration on the same machine. The first thing I wanted to do was disable my Adguard server, making sure I could still use the internet after.
I thought I had cleared out all of the settings in my router that made it use Adguard for DNS, but when I shut down Adguard afterward, all outside connectivity fell apart. I could still get to websites if I knew their specific IP address, but nothing that needed DNS worked. When I booted Adguard back up, everything started working again.
I have tried several options in the DNS server settings in my Asus router (TUF-AX5400). Is there something I need to do in Adguard first to make this work? Or is this maybe something I need to reset in my Asus router and then give it time and a few reboots to work?
Try using 1.1.1.1 or 8.8.8.8 as the external DNS in your router for testing. Does it work then?
Also, you may have DNS cached somewhere. You can flush your Windows DNS cache by typing
ipconfig /flushdnsin a command prompt.