When you try to visit a website, you get this error in Internet Explorer:
Turn on TLS 1.0, TLS 1.1 and TLS 1.2 in Advanced settings and try connecting to (website) again. If this error persists, it is possible that this site uses an unsupported protocol. Please contact the site administrator.
This happens even if you have TLS 1.0, TLS 1.1 and TLS 1.2 turned on in the Advanced settings.
To fix this, go to Internet Options, then click on the Advanced tab and scoll to the bottom. Turn on TLS 1.0, TLS 1.1 and TLS 1.2 if they are not already turned on. Turn on Use SSL 3.0, which should fix your issue.
Notes: You get this error because IE can’t understand the protocol used to deliver the website, because it is turned off in the IE Advanced settings. It doesn’t know which protocol is used, so the error is a generic one. Disappointing really, as it should be able to know which protocol is used and tell you exactly in the error message. Perhaps this is something that Microsoft will fix in future versions!