Net use on Windows fails with System error 59 for some users

This topic describes how to resolve a System error 59 when some users attempt to access /usr/lpp/mmfs/bin/net use on Windows.

Description:

Additional symptoms include

NT_STATUS_INVALID_PARAMETER

errors in the log.smbd file when net use command was invoked on the Windows client for the user with this problem.

Solution:

Invalid idmapping entries in gencache might be the cause. To resolve the error, delete these entries in gencache on all nodes. Run the following commands: /usr/lpp/mmfs/bin/net cache del IDMAP/UID2SID/<UID> and net cache del IDMAP/SID2XID/<SID>. You can run the mmadquery command to know the <UID> and the <SID>. Alternatively, you can find the <SID> from the log.smbd file. See the following message

Could not convert sid <SID>: NT_STATUS_INVALID_PARAMETER

in the log.smbd file. Here, <SID> is the SID of the user.