Deactivated SMB service

Hi all.

I need your help, because I don’t know where to hit my head anymore.
I currently have version 24.10.2.2 installed, but I already had the problem with 24.10.2.1, I don’t remember it never happened to me with 24.04.2.5…
TrueNAS is joined in a Windows AD domain.
For no apparent reason, and at ever changing and seemingly random times, the SMB service turns itself off, and users can no longer access the network share.
There are 3 DNS configured, all always online when the problem happens.
I would like some advice on troubleshooting, finding the cause, and resolving. It happens at least once/week now, and users are furious. If I don’t fix it quickly, I’m afraid I’ll have to find an alternative solution.
In the meantime, I will leave you a copy/paste of /var/log/syslog

Jun 21 09:30:33 xxxxxxxx systemd[1]: Stopping smbd.service - Samba SMB Daemon…
Jun 21 09:30:33 xxxxxxxx systemd[1]: smbd.service: Deactivated successfully.
Jun 21 09:30:33 xxxxxxxx systemd[1]: Stopped smbd.service - Samba SMB Daemon.
Jun 21 09:30:33 xxxxxxxx systemd[1]: smbd.service: Consumed 1h 41min 24.167s CPU time.
Jun 21 09:30:33 xxxxxxxx systemd[1]: Stopping winbind.service - Samba Winbind Daemon…
Jun 21 09:30:33 xxxxxxxx systemd[1]: winbind.service: Deactivated successfully.
Jun 21 09:30:33 xxxxxxxx systemd[1]: Stopped winbind.service - Samba Winbind Daemon.
Jun 21 09:30:33 xxxxxxxx systemd[1]: winbind.service: Consumed 1min 19.800s CPU time.
Jun 21 09:30:33 xxxxxxxx systemd[1]: Starting winbind.service - Samba Winbind Daemon…
Jun 21 09:30:33 xxxxxxxx systemd[1]: Started winbind.service - Samba Winbind Daemon.

Thank you very much!

Can you provide your system specs please.

Of course:
Dell PowerEdge R730
CPU: Intel(R) Xeon(R) CPU E5-2603 v4
RAM: 32GB ECC
Pool: 8x SAS 1TB HDD RAIDZ2
Network: Quad port 1Gb ethernet, connected via LACP bond (2 ports used) to a Cisco 9200L (port channel active ports)

What functionality are you using? SMB, NFS, VMs, Apps etc?

Can you think of any non-defaults you’ve applied at any point?

PS; do you have a large AD and if so have you disabled the cache when joining?