MAKE A NOTE OF THE EXISTING SETTINGS SO THAT YOU CAN REVERT IF YOU NEED TO.

From command prompt enter:

ncpa.cpl
(en,see,pee,ay,dot,see,pee,ell)

From the page presented, double-click the LAN you want.
From the panel presented, select 'Properties'.
From the panel presented, double-click 'Internet protocol Version 4'.
From the panel presented, select as first option, 'Obtain IP address automatically.'
Then set the second at bottom to 'Use the following DNS servers.'

'Preferred DNS' 208.67.222.222
'Alternate DNS' 208.67.220.220

Click OK's as necessary to exit the operation.

MAKE A NOTE OF THE EXISTING SETTINGS SO THAT YOU CAN REVERT IF YOU NEED TO