[Samba] Strange problem with winbind on linux domain member (works for 2 minutes...)

[Rowland Penny]

On Thu, 5 Feb 2026 18:04:54 +0100
Jakob Curdes via samba <samba at lists.samba.org> wrote:


> No, this is just a dedicated Sambe fileserver that is not doing
> anything else. We have two dedicated samba4 DCs (Ubuntu24), and apart
> from this problem everything runs fine.
> 
> Times are in sync, timezones are identical etc. What could the error 
> message point to?
> 
> Feb 05 13:35:01 *** winbindd[3131]: [2026/02/05 13:35:01.392619, 0] 
> source3/winbindd/winbindd_samr.c:71(open_internal_samr_conn)
>   Feb 05 13:35:01 *** winbindd[3131]:   open_internal_samr_conn:
> Could not connect to samr pipe: NT_STATUS_CONNECTION_DISCONNECTED

It is fairly obvious what is happening, winbindd is trying to connect
to a pipe and getting disconnected, the 'why' is the question, try
raising the log level and see if anything pops out in the  logs.

> 
> I cleaned up all .tdb and .ldb files in /var/lib/samba and 
> /var/cache/samba before joining the domain, could I have missed 
> something to clean up?

Have you considered using Debian 13 with Samba from backports, this
will get you 4.23.5 , 4.19.5 is EOL as far as Samba is concerned.

Rowland