Azure Virtual Network
An Azure networking service that is used to provision private networks and optionally to connect to on-premises datacenters.
Unable to delete virtual network with "Internal Server Error" and troubleshooting loop.
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Chris Gouge
0
Reputation points Microsoft Employee
We have two vNets in this situation, both in EastUS, across two different subscriptions. Other regions and other subscriptions have had no problems deleting resources.
There are no resources listed in either vNet, and we have gone through the "view hidden resources" steps as well.
Troubleshooter always says one or both of:
- the resource is out of sync with the resource provider. we've fixed it, try again in 20 minutes. But it never actually fixes it. Hours later, same errors happen.
- The resource is in a failed state. Run "Get-AzVirtualNetwork -ResourceGroupName XXXX -Name DCat-XXXX | Set-AzVirtualNetwork" Running that command as instructed just gives an error:
Set-AzVirtualNetwork: Virtual Network DCat-PPE-Shared-EastUS-vNet can not be updated when deletion was attempted earlier. StatusCode: 400 ReasonPhrase: Bad Request ErrorCode: VnetCannotGetUpdatedWhenDeletionWasAttemptedEarlier ErrorMessage: Virtual Network XXXX can not be updated when deletion was attempted earlier. OperationID : XXXX
How can I fix this error? I've been through all of the "can't delete vNet" troubleshooting steps with no luck..
Azure Virtual Network
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Jeevan Shanigarapu 2,610 Reputation points Microsoft External Staff Moderator2025-10-31T16:15:09.3933333+00:00 Hello @Chris Gouge,
Could you please share the requested information in the private message.
Regard's
Jeevan S -
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Ravi Varma Mudduluru 2,035 Reputation points Microsoft External Staff Moderator2025-10-31T22:33:54.5466667+00:00 Hello @Chris Gouge,
Thanks for reaching out to Microsoft Q&A.
Our backend logs indicate that the VNet you’re trying to delete is still linked through a VNet peering. Please remove the peering connection first and then attempt to delete the VNet again.
Kindly let us know if the above helps or you need further assistance on this issue.
Please "upvote" if the information helped you. This will help us and others in the community as well.
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Chris Gouge 0 Reputation points Microsoft Employee
2025-11-01T00:02:30.46+00:00 There are no peerings shown for the vNet in the portal or when retrieving the vNet object via powershell. If there is some sort of zombie peering that I can't see, I'll need some assistance to delete it.
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