I've been having an issue on my network that has completely vexed me.

I have three workstations running Ubuntu 13.04, one Windows 7 workstation, and three servers on Ubuntu Server 12.04. One of the servers is a domain controller running Samba4 and handles DNS, Kerberos, NTP, and DHCP.

Today I was trying to add a laptop to the domain, running Ubuntu 13.10. I issue net ads join -U AdminUser and the laptop joins the domain with no errors. I literally copied and pasted the config files from the other workstations and verified the permissions.

When I run wbinfo I can see the domain users and groups. However, when I run getent I see only local users and groups. If I run wbinfo -a domainuser --verbose, I am asked for the user's password and the password is accepted with no errors. Kerberos works as well.

nsswitch.conf, pam.d/common-auth, pam.d/common-session, pam.d/common-account, smb.conf, and krb5.conf are all exact copies of the other systems (which work), and I've even read through them all to verify this.

Is there something I've overlooked?

Is there something that was changed on Ubuntu between 13.04 and 13.10?

Any help would be appreciated!