Just have the
nameserver 4.2.2.2
in there as the other one might be causing the problems.
I made mine as router then added some dns ip's to it.
nameserver 192.168.100.1
nameserver 4.2.2.2
This way it should allow the router to handle dns ip routing and use the 4.2.2.2 as backup if 192.168.0.1 fails in my case.
Also check to see if the router has a dns or unplug power from the router for a min or 2 just in case it is unhappy.
Is there a way for you to in windows / another pc check if the internet is working ?
