[Samba] samba 4.19 Windows 11 clients Time sync problem

[Daniel Müller]

Hello,
It is debian 11, and it is ntp, as you can see below my ntp.conf.
Ntp service is running fine . Some , not all, W10/11 clients do not sync with the dc (samba 4.19).
What i did on the clients:
 net stop w32time
w32tm /unregister
w32tm /register
net start w32time
But after some time the wrong time shows up again?

Greetings
Daniel








-----Ursprüngliche Nachricht-----
Von: Luis Peromarta via samba [mailto:samba at lists.samba.org] 
Gesendet: Freitag, 16. Februar 2024 18:00
An: Samba List <samba at lists.samba.org>
Betreff: Re: [Samba] samba 4.19 Windows 11 clients Time sync problem

Hi there.

A few NTP experts around here lately.

We need more info. Distro, and wether your are using NTP (nrpsec) or Chrony.

Regards.

LP
On 16 Feb 2024 at 14:37 +0100, Daniel Müller via samba <samba at lists.samba.org>, wrote:
> 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
>
>
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