No. Which Antivirus program do you use? Can you show us the popup? Maybe it's a hoax, be careful to not follow the instructions.
Which Router do you have?
Thanks for jumping in and helping out. I really appericiate that. I have been using avast for sometime now. The pop up does not come at interval but randomly. I have been able to get an exact picture of the pop up here in this post . Please let me know if following the post guidelines would be helpful or not.
Do you get the same message as in the article: "its DNS settings have been modified [...]"?
Have you changed the DNS settings in the past? Is it set to default? Which DNS servers are used on you local computer?