We recently had a client with DHCP errors appearing every hour as shown below:
PTR record registration for IPv4 address [[172.16.5.xx]] and FQDN cal2-e0cbbc90df.domain.com failed with error 9009 (DNS server not authoritative for zone.)
It there are two known causes for this problem, both with easy fixes:
This is one we have not seen ourselves but one we stumbled on while researching the problem.
Look at the servers location in NETWORK AND SHARING CENTER. Apparently, the error above can occur if your DNS server is set to anything other than a DOMAIN computer. If it thinks it is on a PUBLIC network, it will be bad. You can solve this problem in a number of ways:
This we have seen before and this was our problem yesterday. Again, this is very easy to fix. Just create a new Reverse lookup zone:
Wait a until the next hour cycle comes up and confirm:
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