Why unwanted websites are opening while trying to open any website?

[Windows Central Question]

I am using lumia 730. When i try to open any websites like youtube, yahoo or any other common websites, all of sudden many unwanted websites like some ad sites are opening and restricting me to surf the site i'm willing to. The problem occurs in all web browser in windows store also in IE. i have tried all the settings option in the browser but no use. pl help me.

 

[Ashwani Kumar Singh]

Check with your Internet Service Provider (ISP), they may be messing around with things. *maybe*

 

[Ashok R1]

What to do for that...?