How do I delete a Network Interface attached to a deleted VM?

Arun Prasath 21 Reputation points
2021-07-27T14:37:03.563+00:00

we're trying to delete the network interfaces of a vm that is already deleted and we get an error as it must be dissociated from the resource

Failed to delete network interface 'aadds-2fdd78878fe5478a9d3e3b3ad95af104-nic'. Error: Network Interface aadds-2fdd78878fe5478a9d3e3b3ad95af104-nic is used by existing resource Cust-i-c-x-4-0-c-o-m-c255841c-ca46-4c28-a354-3cfa82721a3c/providers/Microsoft.Compute/virtualMachines/HI-6ZSK-XZQ20VU.134df846. In order to delete the network interface, it must be dissociated from the resource. To learn more, see aka.ms/deletenic.

we have already checked that:

  1. vm did not exist for sure.
  2. resource group of deleted vm doesn't exist too.

please suggest how we can remove the network interface.

Azure Virtual Machines
Azure Virtual Machines
An Azure service that is used to provision Windows and Linux virtual machines.
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Accepted answer
  1. Andreas Baumgarten 123.7K Reputation points MVP Volunteer Moderator
    2021-07-27T16:04:47.617+00:00

    Hi @Arun Prasath ,

    the name of the network interface is looking like the NIC is related to domain controller of an Azure Azure Active Directory Domain Services service (AADDS).

    In AADDS you can't see the 2 DC VMs in Azure Portal. But the related NICs, Loadbalancer, vNet, NSG and Public IP are visible.

    You cant just delete the NIC but you can delete the full AADDS service instead: https://learn.microsoft.com/en-us/azure/active-directory-domain-services/delete-aadds

    ----------

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

    Regards
    Andreas Baumgarten

    1 person found this answer helpful.

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  1. kobulloc-MSFT 26,811 Reputation points Microsoft Employee Moderator
    2021-07-27T15:19:05.433+00:00

    In order to delete a network interface, you would need to stop/deallocate the VM and then detach the network interface. Alternatively, you could delete the resource group:

    Remove-AzResourceGroup -Name [RESOURCEGROUPNAME] –Force  
    

    One work around for scenarios where a VM has been deleted but there is a stranded network interface is to recreate the VM (and resource group if need be) using the same name and region as the original, deleted VM. Then delete the newly created duplicate resource group.

    If that doesn't work, let us know and we can look at the network interface on our end.

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