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DHCP for WIFI error

Hi Experts,

after DHCP migration, all WIFI clients do not get any IP.
But over LAN it works.

Here is the error:

PTR record registration for IPv4 address [[172.23.22.111]] and FQDN PC1-NB001.wittur.com failed with error 9005 (DNS operation refused.
).

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The DHCP is not on DC.
It is installed on another server.

Any ideas ?
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Hello ThereSystem Administrator
Distinguished Expert 2018

Commented:
My thoughts...
DHCP -> Server Options -> 006 DNS Servers
IPv4 Properties -> "Enable DNS dynamic updates..." is checked?
IPv4 Properties -> "Discard A and PTR records..." is checked?
Don't know your network topology... But maybe you need to add the IP helper-address to the main router?
Eprs_AdminSystem Architect

Author

Commented:
IPv4 Properties -> "Enable DNS dynamic updates..." is checked?
IPv4 Properties -> "Discard A and PTR records..." is checked?

Both yes.
System Administrator
Distinguished Expert 2018
Commented:
Have you pointed the router/wireless controller to the new DHCP server based on your network topology?

DHCP -> IPv4 -> Server Options -> Which server did you specify for the 006 DNS Servers?
Eprs_AdminSystem Architect

Author

Commented:
yes we had to change the IP-Helper address and some settings on the wifi controller.

:-)
Hello ThereSystem Administrator
Distinguished Expert 2018

Commented:
I am glad I could help.