If you can't get to those controls, tell more and what errors you see. There are some DNS HIJACKER virus/trojan/whateveryouwanttocallit.exe today so maybe it's infected?
I keep having DNS errors while trying to connect to the internet. This doesn't just happen on my home network, but also while at friend's houses and at my school. This has lead me to believe that the problem has to be with my laptop. I have a new HP ENVY with windows 8 on it and I've had this problem since I bought it. I tried to search up my DNS setting on my computer, but I can't really find anything and beyond that am not sure what to do even when I get there. Any help on this subject would be greatly appreciated.