Unable to join to the domain

Kei Moon 151 Reputation points
2021-02-23T19:19:39.443+00:00

I have a vNet, say vNet_1, with AADDS. Then I created another vNet, say vNet_2, and peering it to the vNet_1. I thought I could join my server in vNet_2 to the domain, which exists already. But I am getting "AD Domain Controller could not be contacted" error. I thought peering would solve the issue because when I created a VM in vNet_1, joining to the domain worked without any issue. I am new to Azure, there must be something that I am not thinking correctly.

Microsoft Entra
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Accepted answer
  1. Andreas Baumgarten 97,566 Reputation points MVP
    2021-02-23T20:07:56.537+00:00

    Hi @Kei Moon ,

    If you login in a VM in the vNet_2 subnet are you able to successfully ping your domain name of AADDS?
    or instance ping yourdomain.org?
    The error message points to the fact the VM can't "find" the domain to join.

    Which DNS Server is configured in the vNet_1? Which DNS Server is configured in vNet_2?

    Maybe this helps:
    https://learn.microsoft.com/de-de/azure/active-directory-domain-services/tutorial-configure-networking#configure-dns-servers-in-the-peered-virtual-network

    ----------

    (If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

    Regards
    Andreas Baumgarten

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