Changing network settings on a domain controller can be a risky ordeal. It's best avoided, but if you must do it make sure to follow these tips.

Microsoft is warning IT administrators that their Windows Server 2025 domain controllers (DC) may lose network connectivity after they are restarted. In a Windows release health dashboard update ...

The processing of Group Policy failed because of lack of network connectivity to a domain controller Download Windows Speedup Tool to fix errors and make PC run faster ...

At this point, your Samba Domain Controller is up and running, but there’s a problem. As is, Samba is working without DNS because your server defaults to systemd-resolved.