Check the value of this registry key on the publisher:
HKEY_LOCAL_MACHINE\SOFTWARE\Cisco Systems, Inc.\Directory Configuration\ DCDMGRPW.If it has the value c0a000a2c101c1a100354615c,
If it does not have this value, open a Disk Operating System (DOS) command prompt and type PasswordUtils ciscocisco123 to generate an encrypted password for ciscocisco123. The encrypted password is 0c0a000a2c101c1a100354615c.
Paste the encrypted password into the registry key.
Make sure the CCMSysUser field is not empty. If it is empty, type ciscocisco and re-run the plugin.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.