Spurious DNS Servers

[Balanga]

On my dashboard under DNS Servers the following are listed:-

127.0.0.1
194.168.4.100
194.168.8.100
192.168.1.1

I have no idea where the middle two came from, and don't see any options for adding IP addresses. I assume the system autoconfigure itself.

Where could they have come from and how do I delete them?

[heper]

General settings. Checkbox for dhcp override

[Balanga]

Thanks, that worked.