Hi Robb,
Thanks for your quick reply!
Yes, I realised it was old, but I have [nearly] the exact same symptoms. I'm using Ubuntu 12.04 and Zentyal 2.3:
Aug 23 16:47:28 zentyal named[19327]: client 127.0.0.1#41489: updating zone 'tld.com/IN': update unsuccessful: andrew-desire-z.tld.com: 'name not in use' prerequisite not satisfied (YXDOMAIN)
Aug 23 16:47:28 zentyal named[19327]: client 127.0.0.1#55682: updating zone 'tld.com/IN': deleting rrset at 'andrew-desire-z.tld.com' A
Aug 23 16:47:28 zentyal named[19327]: client 127.0.0.1#55682: updating zone 'tld.com/IN': adding an RR at 'andrew-desire-z.tld.com' A
Aug 23 16:47:28 zentyal dhcpd: Added new forward map from andrew-desire-z.tld.com. to 192.168.1.50
Aug 23 16:47:28 zentyal dhcpd: unable to add reverse map from 50.1.168.192.1.168.192.in-addr.arpa. to andrew-desire-z.tld.com.: timed out
I have replaced our actual domain name with tld.com
Regards
Andrew