I am trying to login to the http://myserver/arcgis/rest/admin page and when I log in with credentials I get no error message but I am returned to the same login page. If I put in bad credentials I get an error message saying bad login. I can login to the rest/services page and the ArcGIS Server Manager Site.
I found this but I am not sure if this applies http://forums.esri.com/Thread.asp?c=204&f=2388&t=257171
It looks like I am using a reverse proxy..from looking in the rest.config file under the rest directory. Does anyone have a clue on what I should investigate?