Can you elaborate a bit on how you are joining the domain, and the output you are getting? The upstream bug and this one are not showing that particular detail, they only say that "net ads join fails".
I'm on bionic and I'm using "net ads join -k", after having obtained a ticket for the realm's Administrator. Something like this: root@bionic:~# kinit Administrator Password for Administrator@LOWTECH.INTERNAL: root@bionic:~# klist Ticket cache: FILE:/tmp/krb5cc_0 Default principal: Administrator@LOWTECH.INTERNAL Valid starting Expires Service principal 10/18/18 18:40:14 10/19/18 04:40:14 krbtgt/LOWTECH.INTERNAL@LOWTECH.INTERNAL renew until 10/19/18 18:40:12 root@bionic:~# net ads join -k Using short domain name -- LOWTECH Joined 'BIONIC' to dns domain 'lowtech.internal' root@bionic:~# echo $? 0 I can confirm in windows' "Active Directory Users and Computers" that the computer record is there. This is a 2016 AD Server, btw. At first I had a dns update error, like described in https://wiki.samba.org/index.php/Troubleshooting_Samba_Domain_Members#No_DNS_domain_configured._Unable_to_perform_DNS_Update. I then added the fqdn of this host to /etc/hosts and repeated the join, and now it works. And DNS is working too. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1794537 Title: net ads join crashes on error in DoDNSUpdate To manage notifications about this bug go to: https://bugs.launchpad.net/samba/+bug/1794537/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs