I have a PowerEdge R510 on 2008R2 still.  OpenManage Server Administrator (Managed Node) does not get past the log screen (it worked previously so I suspect WinUpdate or browser issue - I cleared cache/cookies, tried low security and compatibility view in IE).  I'm talking about the OpenManage (black) login screen, not the Windows security popup that you get sometimes.

When logging in with the correct credentials, the screen says "verifying credentials", clears, begins to paint the title bar of the OMSA system status page left nav, and then the login screen comes back again.

When logging in with the wrong credentials, a dialog comes up with "login failed" before the login screen comes back.  This is what makes me believe it is not a credential issue (I know the administrator password).

The system originally had OMSA 8.2 loaded.  I uninstalled it, rebooted, and loaded OMSA 8.5 but it does the same thing.

OMSA 8.5 is showing as supported for this system, and it worked with 8.2 previously.

Is there an uninstall or cleanup tool?  Anybody seen this behavior before?