Hello, you have to concentrate to the solution proposed by Shine-K. Try to log in from a workstation and make sure that all other versions of Java are uninstalled. Then install the exact version mentioned by Shine-K (Java 9 Update 251). Check also this conversation [URL]   You should try with different versions of Java and/or browser (Firefox, Opera, etc). I hope this helps Thanks Marco
Hello, I'm unable to logon to OMSA on a few of the servers that still run 2008 R2 but get no error.  I'm just returned to the login screen.  Can anyone help?  I'm using IE11. Geoff    
Unable to login to OpenManage Server Administrator 8.3.0 on Windows 2008 R2