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Copy file name to clipboardExpand all lines: support/windows-server/active-directory/status-code-0x32-cannot-join-domain.md
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title: Status Code 0x32 And You Can't Join a Domain
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title: Status code 0x32 and you can't join a domain
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description: Helps resolve an issue in which you can't join a domain with status code 0x32. This issue is related to the failure to establish a Server Message Block (SMB) session to the domain controller (DC).
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ms.date: 03/21/2025
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manager: dcscontentpm
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-> Can't join this domain. Contact your IT admin for more info.
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:::image type="content" source="media/status-code-0x32-cannot-join-domain/cannot-join-domain-contact-it.png" alt-text="Screenshot of the error message showing that you can not join a domain and need to contact IT.":::
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:::image type="content" source="media/status-code-0x32-cannot-join-domain/cannot-join-domain-contact-it.png" alt-text="Screenshot of the error message showing that you can't join a domain and need to contact IT.":::
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-> The following error occurred attempting to join the domain "adatum.com":
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>
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> The request is not supported.
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:::image type="content" source="media/status-code-0x32-cannot-join-domain/error-occurred-request-not-support.png" alt-text="Screenshot of the error message showing that an error occurred and the request is not supported.":::
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:::image type="content" source="media/status-code-0x32-cannot-join-domain/error-occurred-request-not-support.png" alt-text="Screenshot of the error message showing that an error occurred and the request isn't supported.":::
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When you check the **NetSetup.log** file, you see the following entries:
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## The security policy is set incorrectly
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The **NetSetup.log** file shows that the client fails to establish an SMB session with the DC. If you examine the network trace, it indicates that the DC returns STATUS_NOT_SUPPORTED to the C SESSION SETUP request from the client. The DC rejects the client's credential in the C SESSION SETUP request, which is the initial step of NT LAN Manager (NTLM) authentication.
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The **NetSetup.log** file shows that the client fails to establish an SMB session with the DC. If you examine the network trace, it indicates that the DC returns STATUS_NOT_SUPPORTED to the C SESSION SETUP request from the client. The DC rejects the client's credential in the C SESSION SETUP request, which is the initial step of NT LAN Manager (NTLM) authentication.
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:::image type="content" source="media/status-code-0x32-cannot-join-domain/network-trace-ntlm-authentication.png" alt-text="Screenshot of the network trace showing the DC returns STATUS_NOT_SUPPORTED to the C SESSION SETUP request from the client.":::
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@@ -81,7 +81,7 @@ There are seven security policies related to NTLM.
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-**Network security: Restrict NTLM: Add server exceptions in this domain**
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> [!NOTE]
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> The two exception lists are for the client and the DC, respectively. There is no exception list for the server role in NTLM authentication.
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> The two exception lists are for the client and the DC, respectively. There's no exception list for the server role in NTLM authentication.
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- To control whether NTLM is allowed or not at each of the three roles in a complete NTLM authentication process:
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