DNS Issue

[Dogglebird]

I have installed Big Sur on my iMac and I have found the DNS is not performing properly, especially with my VPN. So, on advice from my VPN provider, I changed the DNS settings and it solved the problem - much faster and stable connection. However, within hours, it slowed down again and I checked the DNS only to find that all the DNS servers I had input had vanished and the old ones had returned. This keeps happening. Has anyone any ideas why or how I can fix that?

Thanks!

 

[brsilb]

My Mac mini M1 had 10.0.0.1 DNS servers assigned on my WiFi connection. I changed to OpenDNS free servers and had an immediate speed improvement. I will see if it stays that way.

 

[Dogglebird]

Same here. I have had to replace mine three times this morning. I put up the OpenDNS servers last night - by this morning they had vanished and the old slow ones had returned.

I hope you have more luck than I have had.

 

[jingo_man]

Did you resolve this issue? I seem to have the same issue, with the DNS server settings changing