Looks like you didn't read my post. I posted here as I also can't open websites as well as it's a network issue - which IS similar to his problem.
If you want to be rude to your users then i'll stick to firefox.
Do more on the web, with a fast and secure browser!
Download Opera browser with:
I'm getting a similar error to this post.
"This site can't provide a secure connection" and a
"___.com Sent an invalid response." Then
"try Windows diagnostics".
I added Google.com to trusted sites in internet options, still no change. It affects various sites, popular ones, and they can be opened in other browsers - just not Opera.
This has only started to happen within the last 24 hours. I had to resort to Firefox to surf. I uninstalled Opera, did a registry wipe, re-installed, and the error persists.
Was there a big update patch that messed things up somewhere? It was working fine before yesterday with no changes on my end.