Originally Posted by plantsower
It's set to DHCP and IPV4.

Well that eliminates one reason for the 192 DNS servers' re-appearance on the list. A mistake I have made in changing the settings in System Preferences > Network > Advanced is not clicking OK on this window and then clicking APPLY on this window. It is easy to miss the second one and if you don't click both, the changes will not stick. If there is something else at work here, I am at a loss.

If we knew what it was we were doing, it wouldn't be called research, would it?

— Albert Einstein