I configured DirectAccess on Server 2012 R2 Standard. It was working for a long time and all of a sudden It stops working due to an IP-HTTPS issue. Here is what I am getting when I go to the Operation Status:
The IP-HTTPS listener is inactive and cannot accept connections from DirectAccess clients.
The Listener service has been stopped, or is not configured.
Ensure that the IP-HTTPS listener is listening on port 443 of the external network adapter.
I removed the configuration Setting and reconfigure it the same way I was, but that didn't fix it.