I'm using IIS 7.5. This Intranet website was installed with SSL last year and was working until now. A co-worker changed the site name in the IIS when I was on leave and turned off the SSL so I went to IIS and turned it on by selecting "Accept' or "Required" but both didn't work when I type in https://mysite.com.
Is the SSL not working because the site name was changed in IIS? But it's bind to the same domain name so it shouldn't break it right?
I checked the ssl certificate in Server Certificate and it expires on 1/2019 so it's still good.
At the web server, I checked and make sure port 443 is opened in the FireWall setting. I used this, https://www.sslshopper.com/ssl-checker.html#hostname=researchlink.med.usc.edu
, on the Internet and it says it can't find the SSL cert.
"No SSL certificates were found on mySite.com. Make sure that the name resolves to the correct server and that the SSL port (default is 443) is open on your server's firewall."
In IE 11 I get error message "Turn on TLS 1.0, TLS 1.1, and TLS 1.2 in Advanced settings....". I checked in IE Advanced tab and those options were checked but grey out. Please see the attached screen capture. What does this mean? Is it turned on?
In FF, I get "Secure Connection Failed"
Appreciate any help to fix this problem. Thank you.
p.s. http://mySite.com is working