I'm running a Windows Server 2008 R2 domain. We outgrew our /24 DHCP scope, and I ended up needing to expand it. This was done by exporting the old scope, changing the txt config, deleting the original, and importing the new config. The change made was to alter the subnet mask from /24 to /23 and open the scope up from 192.168.100.0-255 to 192.168.100.0-192.168.101.255.
This change was fine, but the problem I am running into is that none of the addresses that are in the 101.0-255 portion are populating into the reverse lookup zone.
I'm not sure what info needs to be provided for this issue, so please feel free to ask for some.
If I go into a forward lookup zone record, uncheck the update PTR record setting, apply it, and then go back in and recheck it, the respective reverse record will be created. However, this has to be done individually so it is not a realistic fix. It does provide insight that there are no errors creating the new records, but something is still preventing it from doing this automatically.