Hi,
I just realized your are using “ad.local” as domain name? Did you just install your server from scratch? If so and there is not yet too much configured I would recommend to re-install the server and use a domain name NOT ending with “.local”!
The .local domain has a different meaning in mDNS/ Bonjour part and can cause issues in DNS-Domains.
Use whatever you like- but do NOT let it end with “.local”!
/KNEBB