[Samba] samba 4.19 Windows 11 clients Time sync problem

[Daniel Müller]

Dear all,

We just have a samba 4.19 domain running. And what i recognized ist hat some
windows 10/11 clients does not sync time with the dc. The time is not the
real time as on the dc, about 10 minutes back or several minutes in the
future.
Is this a bug or did spmething chance in the behaviour of samba?

My ntp.conf/ Debian11:
driftfile /var/lib/ntp/ntp.drift

server 127.127.1.0
fudge 127.127.1.0 stratum 10
leapfile "/usr/share/zoneinfo/leap-seconds.list"

ntpsigndsocket /var/lib/samba/ntp_signd  <--- rights are set
listen xxx.xxx.xxx.xxx
statistics loopstats peerstats clockstats
filegen loopstats file loopstats type day enable
filegen peerstats file peerstats type day enable
filegen clockstats file clockstats type day enable
pool 0.debian.pool.ntp.org iburst
pool 1.debian.pool.ntp.org iburst
pool 2.debian.pool.ntp.org iburst
pool 3.debian.pool.ntp.org iburst
restrict -4 default kod notrap nomodify nopeer noquery mssntp
restrict -6 default kod notrap nomodify nopeer noquery mssntp
restrict 127.0.0.1
restrict ::1
restrict source notrap nomodify noquery

ntp is working:
root at dommaster:~# ntpq -p
     remote           refid      st t when poll reach   delay   offset
jitter
============================================================================
==
 LOCAL(0)        .LOCL.          10 l  39d   64    0    0.000   +0.000
0.000
 0.debian.pool.n .POOL.          16 p    -   64    0    0.000   +0.000
0.000
 1.debian.pool.n .POOL.          16 p    -   64    0    0.000   +0.000
0.000
 2.debian.pool.n .POOL.          16 p    -   64    0    0.000   +0.000
0.000
 3.debian.pool.n .POOL.          16 p    -   64    0    0.000   +0.000
0.000
+mx.ae9.eu       237.17.204.95    2 u 1578 1024  352   27.597   -0.442
4.748
*178.215.228.24  36.224.68.195    2 u 1616 1024  316   18.896   -1.582
1.654
+time.cloudflare 10.97.8.67       3 u 1859 1024  236   19.943   -2.323
1.808
+mail.kpprs.de   185.248.189.10   2 u  757 1024  137   24.486   -1.520
1.706
+httphost1.skyte 131.188.3.220    2 u 1478 1024  236   26.967   -1.293
2.372
root at dommaster:~# service ntp restart
root at dommaster:~# ntpq -p
     remote           refid      st t when poll reach   delay   offset
jitter
============================================================================
==
 LOCAL(0)        .LOCL.          10 l    2   64    1    0.000   +0.000
0.000
 0.debian.pool.n .POOL.          16 p    -   64    0    0.000   +0.000
0.000
 1.debian.pool.n .POOL.          16 p    -   64    0    0.000   +0.000
0.000
 2.debian.pool.n .POOL.          16 p    -   64    0    0.000   +0.000
0.000
 3.debian.pool.n .POOL.          16 p    -   64    0    0.000   +0.000
0.000

Greetings
Daniel