Ad Exchanger Wonderland Ads & other Pop Up Ads Network sites hijacks the browser or DNS setting of our computer unknowingly.
1) Browsing speed will be slow
2) Redirection to their site
3) Most of the website would be unaccessible and you might see this page is forbidden.
4) Chances of personal data theft via adwares unknowingly.
Adware Removal Method 1st Method
Download this application Adware Removal Tool and scan your system, if infections are found they can be removed.
If still the issue is not solved even after trying with other adware removal tools then try second method.
Check whether the DNS settings of Modem/Router has been changed, if so, change what your ISP recommends or use Google Public DNS
Note : If DNS has been changed there is no use of reinstalling the OS, just change the DNS settings.