DNS Server Address

Hello,

Am having a few issues wit my workstation. My DNS Server address has
been changed to 88.255.112.74 yet it was 10.10.1.1 its a static address
now when i try and change it back to 10.10.1.1 it will go back to the 88
one after i close and open the settings again…. What the??? I really hate
it when some just doesnt work like i want it to…..

I dont use DHCP so i don see why it cant change n stay like that