My server run IIS 7 with multiple sites. It uses 1 wildcard SSL certification for domain and subdomains (SAN SSL). It were working fine.
Then I installed new SSL certificate (the same type like old one) into IIS. It would, of course, rebind to all sites. It's done with almost all sites.
However, there is still one site (just like other sites), serves the old SSL certficate. In configuration, I can't find any differencies between it and other sites.
How this expection just possible to occur! That's weird.
So, do you know any way to fix this? Thank you in advance.
Edit 1: I have checked it, by editing hosts file for this subdomain. Result is that IIS is serving the right SSL certificate. Sorry everyone. Poor me.
So the question now is different. Standing before this server to internet is a Fortiweb firewall, and a load balancer. Like this:
IIS server -> Fortiweb firewall -> Load balancer -> router -> internet
Balancer is just a forwarder. The firewall was configured new SSL, so that all domain and subdomains can be accessed from outside. Yeah, they can be, except that subdomain.