reply to OverrRyde
Re: dd-wrt and unotelly ignore all their damn crap. I had to do this yesterday.
It's really easy I made a screenshot for ya.
You have to change your connection type to IP static leave all the settings alone and just input the DNS you want to use into static DNS 1 click on apply settings at the bottom of the screen and you're good. no idea if changing your setting to static IP will give you issues in future.
Make sure whatever device you want to use you reset after the fact or it won't pick up.