Hello aldric challe,
Thank you for posting in our Q&A forum.
Please troubleshoot the issue based on the points below:
1.Please check if the preferred DNS and Alternative DNS on this Windows 11
is the IP address of DNS server (if your DC is also a DNS server, it should be the IP of DC server).
2.On the Windows 11 machine, you can try to ping domain name and check the result.
3.On the Windows 11 machine, you can try to ping FQDN of the DC (such as DC.domain.com) and check the result.
4.On the Windows 11 machine, check if all the ports below are open.
For example:
53/TCP/UDP DNS
389/TCP/UDP LDAP
135/TCP RPC Endpoint Mapper
49152-65535/TCP RPC for LSA, SAM, Netlogon
88/TCP/UDP Kerberos
445/TCP SMB
5.If the issue occurs on other clients or workstations, we may also check ports on DCs.
Active Directory and Active Directory Domain Services Port Requirements
Active Directory Replication over Firewalls
6.Check the netsetup.log (C:\Windows\Debug\netsetup.log) on this Windows 11.
Other reference:
https://learn.microsoft.com/en-us/troubleshoot/windows-server/identity/active-directory-domain-join-troubleshooting-guidance
Hope the information above is helpful. If you have any question or concern, please feel free to let us know.
Best Regards,
Daisy Zhou
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