I have problem on a SharePoint 2010 Server installation where the Central Admin icon/link (the one in start menu) isn't working.
It opens a browser with a URL to the root address of the server, then it starts looping 302-requests back to itself '/' finally ending in a page not found. To access central admin I have to either type server:port/default.aspx or browse from iis which also goes to the root address but then it redirects correctly to default.aspx
I have confirmed that [CentralAdministrationUrl] in Registry contains the correct url (server:port).
any thoughts?