The screen to start a JES region comes up with "currently logged-on administration user" as the default startup UserID. When shutting down, this caused invalid password attempts for the user trying to log on, causing microfocus-MFDS-User-LoginAttempts to exceed the alotted number and suspending the logon (microfocus-MFDS-User-AllowLogon=FALSE) due to excessive invalid password attempts (signon attempts=6), leaving user unable to log on.

Set the  "MFDS_SYSTEM_USER" environment variable to "Y" before Starting MFDS. The MFDS_SYSTEM_USER needs to be set before Starting MFDS for this to work, it cannot be set in the region configuration area.

Then the default Enterprise Server credentials selected by the GUI for Enterprise Server instance start and stop requests is "default #System group user" (instead of "currently logged-on administration user").

This was changed in MFDS 1.14.04 onwards.

ex. "MFDS_SYSTEM_USER = Y