[Samba] machine accounts question

[mourik jan c heupink]

Some extra info from the samba side of things:

During the psexec as machine user, samba logs the following:

> [2015/10/12 20:38:45.552716,  1] ../source3/auth/token_util.c:777(create_token_from_sid)
>   getpwuid(1276) failed
> [2015/10/12 20:38:45.552786,  1] ../source3/auth/auth_generic.c:119(auth3_generate_session_info_pac)
>   Failed to map kerberos pac to server info (NT_STATUS_NO_SUCH_USER)

1276 being the uidNumber I manually added to the machine account, to see 
if that solved my issue. (which it didn't)

And, just for completeness, the machine account does exist, as can be 
seen in samba log entries like this:

> [2015/10/12 20:29:45.724724,  2] ../source3/auth/auth.c:278(auth_check_ntlm_password)
>   check_ntlm_password:  authentication for user [INSTR05$] -> [INSTR05$] -> [INSTR05$] succeeded
> [2015/10/12 20:29:45.725599,  1] ../source3/auth/token_util.c:777(create_token_from_sid)
>   getpwuid(1276) failed

Ideas? Am i looking in the right direction?