About a year ago, we set up our office with four Windows Server 2012 R2 servers running in VMware virtual machines. One of these is configured with the Windows Server Essentials role and is our domain controller. We configured Anywhere Access for both virtual private network (VPN) and remote web access (RWA) using a third-party certificate from GeoTrust. We have Windows 8.1 Enterprise clients with about 8 users that occasionally connect via the VPN. All has been working fine for the last year until this morning.
Over the weekend, our certificate expired, so I purchased and installed a new one this morning. Since then, no one is able to connect to the VPN. When we try to connect, it goes through very quickly and looks like it is connecting (and even very briefly shows "Connected"), but the connection is not made (or it is dropped) and no error is displayed. We ARE able to log on to the RWA site with the new certificate.
When I received the new certificate, I edited the bindings for the Default Web Site on the Essentials server to use the new cert. After we discovered the problems, I also ran through the Anywhere Access configuration wizard again. I don't know if there is something else I need to do or what the problem is. One other note is that the new certificate is using SHA-2 instead of SHA-1.
Do you have any thoughts on what the problem might be or where to look for more information? Again, we don't receive any error message, the connection just seems to drop as soon as it is made.