[Samba] Samba 4 AD member loose membership after DC reboot

[Rowland Penny]

On Thu, 2022-03-31 at 11:56 +0200, Frank via samba wrote:
> Hi there,
> 
> we have a Samba 4 AD installation with one DC and two members.
> 
> All of them are ubuntu 20.04 with samba 4.13
> 
> The thing is when DC is rebooted, it seems members loose its
> membership, 
> and the only way to recover it is to reboot the member.
> 
> In the wrong state, we get the following in members:
> 
> # net ads testjoin
> ads_connect: No logon servers are currently available to service the 
> logon request.
> Join to doman is not valid: No logon servers are currently available
> to 
> service the logon request.
> 
> After member reboot, "testjoin" shows membership recovered:
> 
> # net ads testjoin
> Join is OK.
> 
> We suspect it has to do with some winbind parameter.

It may be, but has you haven't provided the smb.conf files you are
using, saying which parameter, if any, would be a guess.
Please post the smb.conf from the DC and a Unix domain member.

Rowland