The client entered the PASS command. The setgroups function issued by the FTP server failed, indicating that the number of supplementary groups for the specified user plus the basegid group exceeds the maximum number of groups allowed, or an invalid user is specified.
The login to the user ID on the server system is rejected. Control is returned to the client for further command processing.
Contact the system programmer to determine which supplementary groups your user ID is connected to.
Ensure that the user ID being used to log in to the FTP server is not connected to more than 300 supplementary groups.