When I installed Comodo Internet Security, I had set my computer to use “Comodo Secure DNS.” However, I figured out that no website was being blocked by it.
Don’t you also need to change the setting saying “From ISP” to another setting that says something like “Custom” or “User defined” or something similar?
open cmd and type [i]ipconfig /all[/i] and see what settings do you have under DNS servers (see image below)
[URL=http://img279.imagevenue.com/img.php?image=136282833_Untitled_122_516lo.jpg]
http://img279.imagevenue.com/loc516/th_136282833_Untitled_122_516lo.jpg
[/URL]
Could you tell what settings you have? (in the yellow box)
It’s obviously a configuration issue, but it’s unclear what you’ve tried and what you haven’t.
Have you tried ipconfig /flushdns, ipconfig /release, and ipconfig /renew? These commands should ensure that you’re using the most current DNS settings.
Using ipconfig /all after those commands should now list your new DNS addresses.
And have you checked your firewall logs to see if it is blocking DHCP from being acquired?