I have a client who is unable to access secured sites. I have gone into Internet Options nd set the Site as a trusted site (although all https sites has this problem) and that didn't work. I made sure that SSL 2.0, 3.0 were cheked, cleared his cache and history.
i tried to go to http://www.yahoo.com
and had no problems at all. Then I tried going to https://www.yahoo.com
and got this page could not be displayed. Both URL's work on my machine. Then i tried to go to http://www.google.com
and it failed. I put in the IP of Google.com 220.127.116.11 and the site displayed. When I put in https://18.104.22.168
again i got the cannot display this page.
Thinking it was the DNS I set his DNS to 22.214.171.124 and 126.96.36.199 - no change.
So the best I can figure he cannot go to any secure sites and fails on some non-secure sites.
It seems his kids took the liberity of installing some optimization software on Saturday which is when the problem started. He is running a HP tablet running Windows 8.1
Any help would be appreciated.