I'm trying to enable SSL on ArcGIS Server 10.1 using the web adapter. I have followed this article to the letter.
Attempting to access either the admin page or rest services with HTTPS takes me to a page with ArcGIS header that says "Unable to connect to the remote server."
We have several other apps running on this machine and we can access them via HTTPS just fine. It's been correctly enabled in IIS.
We also have another 10.1 Server installation where we enabled SSL without issue using the previously cited knowledge base article.
Any suggestions would be appreciated, thanks.