JoinDomain VMExtensionProvisioningError when deploying WVD

BachDSingh

When I run into domain join problems with the extension, I'll typically RDP into a VM and try joining the domain manually to rule out networking or credential problems, which many times is either one causing the problem.  Be sure to configure a custom DNS for the VNET that is the IP for AADDS, otherwise the VM's in your host pool will not be able to resolve your domain name.

Here is a good document to help with further troubleshooting

https://docs.microsoft.com/en-us/azure/active-directory-domain-services/network-considerations#name-resolution-when-connecting-virtual-networks

-Jeff