[Samba] - Unable to access the share due to user mapping not happening

[suresh b]

Hi All,

There were no issues with accessing the share when the server was running
with Solaris 11.3.1, after upgrading to 11.3.34 and 11.4 version users are
unable to connect the share using the same credentials.

When server connecting the Samba version is
root at prusamba:~# smbd -V
Version 4.7.6

The current version which was failing to access the share is:-
root at prusamba:~# smbd -V
Version 4.11.11

Error Message:-

=========================
[2021/03/30 15:46:34.831879,  0]
../lib/util/become_daemon.c:124(daemon_ready)
 STATUS=daemon 'smbd' finished starting up and ready to serve connections
[2021/03/30 15:46:34.870289,  1]
../source3/printing/printer_list.c:234(printer_list_get_last_refresh)
 Failed to fetch record!
[2021/03/30 15:58:17.191148,  1]
../source3/profile/profile_dummy.c:30(set_profile_level)
 INFO: Profiling support unavailable in this build.
[2021/03/30 15:58:17.371979,  0]
../lib/util/become_daemon.c:124(daemon_ready)
 STATUS=daemon 'smbd' finished starting up and ready to serve connections
[2021/03/30 15:58:17.384692,  1]
../source3/printing/printer_list.c:234(printer_list_get_last_refresh)
 Failed to fetch record!

2021/03/30 15:52:04.990755,  1]
../lib/param/loadparm.c:1823(lpcfg_do_global_parameter)
 WARNING: The "enable privileges" option is deprecated
[2021/03/30 15:52:04.993495,  1]
../auth/ntlmssp/ntlmssp_server.c:966(ntlmssp_server_postauth)
 ntlmssp_server_postauth: invalid NTLMSSP_MIC for user=[icarlomagno]
domain=[NET01] workstation=[PC_SQL2000_W10]
[2021/03/30 15:52:04.993588,  1] ../lib/util/util.c:515(dump_data)
 [0000] 9D C9 BE B1 A7 3F 1A 1F   BF B6 39 2A 5D CC F8 34   .ɾ▒▒?.. ▒▒9*]▒▒4
[2021/03/30 15:52:04.993701,  1] ../lib/util/util.c:515(dump_data)
 [0000] 8A EC 03 E4 C8 29 63 3C   DD 7C 55 A3 06 1A 98 5F   .▒.▒▒)c<
▒|U▒..._
=====================

# Global parameters
[global]
       deadtime = 15
       lanman auth = Yes
       load printers = No
       log file = /var/samba/log/log.%m
       password server = 100.50.101.80 100.50.101.81
       server string = Samba en el Solaris
       username map = /etc/samba/smbusers
       workgroup = ENCLOWD
       idmap config * : range =
       idmap config * : backend = tdb
       case sensitive = No
       create mask = 0664
       directory mask = 0775
       valid users = subba chcko

[share]
        path = /share
        valid users = chcko
        read only = No
===================

Any help appreciated.

Thanks & Regards,
B.Suresh