Morning all. My AD is working perfectly fine with no issues. Windows client creates and updates its??IP address (forward zone) on a regular basis, but does not create or update the reverse record. Using RSAT DNS tool, If I manually create a new A record for a host, and I select???Create associated PTR record?, the record is not created neither. My network is 192.168.0.0/22 and I have created a 168.192.in-addr.arpa zone for reverse lookups. Before this attempt, I had 4 zones, 0.168.192.in-addr.arpa, 1.168.192.in-addr.arpa, 2.168.192.in-addr.arpa and 3.168.192.in-addr.arpa with same result, no PTRs created or updated if they existed. Any hints ? All the best, LP