Disable NTLM - Domain Join fails

Robert Ro 21 Reputation points

we're trying to implement NTLM blocking (yes, this article is from 2009) and have enabled the relevant GPOs both on DCs and all member systems.


surprisingly enough most things work just fine, which is good. but joining new computers to the domain doesn't.

we receive "The request is not supported"


Any guidance on how to make this work?

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
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  1. Limitless Technology 42,306 Reputation points

    Hello there,

    If the issue happens for multiple PCs when joining the domain , it is suggested to check the status of the DCs and the replication among DCs, DNS configuration.
    Run command the DCs and confirm if there are any errors:
    Dcdiag /v >c:\dcdiag1.log
    Repadmin /syncall /APeD
    Repadmin /showrepl >C:\repl.txt
    Repadmin /showreps *
    Ipconfig /all > C:\dc.txt

    Hope this resolves your Query !!

    --If the reply is helpful, please Upvote and Accept it as an answer–

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