samba - Jul 2015 - adding a win2008r2 server as an additional dc to a samba4 dc created domain

I'm using 4.2.2, sernet, on Debian Jessie. Bare bones recently created dc. I
can join workstations,
add users, groups using the samba-tool and and the microsoft remote tools.

Now I'm trying to add a freshly installed 2008R2 as an additional dc.

All seems to go fine (I get an error about dns delegation which I think I can
ignore), it finds the
domain and the site name,  but the join fails.

"The attempt to join this computer to the "domain.tld" domain
failed. This operation is only allowed
for the primary Domain Controller of the domain"

Logs show nothing significant. Nor does Google. Any ideas?

Hello Neil,

Am 15.07.2015 um 16:53 schrieb Neil Price:
> Now I'm trying to add a freshly installed 2008R2 as an additional dc.
> 
> All seems to go fine (I get an error about dns delegation which I think
> I can ignore), it finds the domain and the site name,  but the join fails.
Please ensure, that you have exactly followed this guide:
https://wiki.samba.org/index.php/Joining_a_Windows_Server_2008_/_2008_R2_DC_to_a_Samba_AD



Regards,
Marc