I came in this morning and the network administrator told me that he had to reboot one of our DCs. And now, our "portal" is not automatically logging him in. To be honest, this may not be the actual cause of the issue as the net admin was unable to verify if it was working immediately before the DC reboot.
The portal had been working for quite some time and nothing has changed, except the recent DC reboot. When I open the portal in IE I now get the generic, "Internet Explorer cannot display the webpage" error. When I refresh it takes me to the DNN login screen. Once I get to the login screen I'm able to login, but of course that's not the way it should be working.
So I try to open the portal in Firefox. Historicly this will display a challenge screen where I can put in my user id preceeded by the domain + "\" and my password and viola, I'm logged in. Today, however, it presents the challenge screen again and again, never authenticating.
So, I tried an "IISRESET" on the server, no help. I rebooted the server, no help.
The server is in our DMZ and we have a trusted connection through our firewall. As I stated before, this has been working for months now with no issues.
Any ideas?