Annoying username\password box keeps popping up.

We have the 7.0.0.1 build in place. We use the AD authentication and passthrough enabled. Sometimes all works fine and sometimes we get a Windows (not a ServiceDesk) prompt box asking for username and password. Whatever we type in there doesn't seem to satisfy this and it pops up again. Wherever the browser is pointing to i.e http://servername:8080 is related to the popup box - in this case the box will say "Connect to severname" if we use the IP address e.g. http://10.0.0.30:8080 it'll pop up and say "Connect to 10.0.0.30"

We use a proxy server and i've removed that from the equation. The issue is that sometimes it works fine and other times it doesn't. I think the issue lies with the software.

Any help would be appreciated.