Terminating UCSM Sessions Manually

1.    Sometimes your UCSM web sessions will get hung up and prevent you from logging in. The following will help you remove the selected sessions you wish to terminate and then allow access again.
2.    First SSH into your UCSM FIs.
3.    Next type in the following:
    a.    #scope security
    b.    #show user-session “local or remote”
    c.    #delete user-session “local or remote” UserName SessionID
        i.    This will be the select username you wish to terminate along with their Session ID. Be CAREFUL, some users might have SSH or the Web interface, or both up. Make sure you select the right Session ID.
    d.    #commit-buffer
4.    Now you should be able to close out all of your web browsers you have the UCSM open in, go back and try to re-log on.

5.    Finally, another way to terminate is you can terminate all Cisco Integrated Management Controller (CIMC) sessions. The above method is preferred since you can specify which one, but continue the following if you are still having issues:
    a.    #scope security
    b.    #show cimc-sessions “local or remote”
    c.    #show cimc-sessions “local or remote” UserName
    d.    #scope security
    e.    #terminate cimc-sessions “local or remote”-user UserName
    f.    This will close cimc sessions. Are you sure? (yes/no): yes
6.    Again, close out of your browsers with the USCM open in and then re-open and try to authenticate again.

Reference:
https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/ucs-manager/CLI-User-Guides/Admin-Management/3-1/b_Cisco_UCS_Manager_CLI_Administration_Mgmt_Guide_3_1/b_Cisco_UCS_Manager_CLI_Administration_Mgmt_Guide_3_1_chapter_0111.html