@Kayak2 Based on the error message can you please refer to the suggestion mentioned in this link.
Also refer to this GitHub link: Error 86 Specified password is incorrect
Active Directory authentication over SMB for Azure file shares: https://learn.microsoft.com/en-us/azure/storage/files/storage-files-identity-auth-active-directory-enable#mount-a-file-share-from-a-domain-joined-vm
Azure Active Directory Domain Services authentication on Azure Files:ht tps://learn.microsoft.com/en-us/azure/storage/files/storage-files-identity-auth-active-directory-domain-service-enable#mount-a-file-share-from-a-domain-joined-vm
If the issue still persists, please share the screenshot of the error message or error code.
For additional information please see here also, which gives an idea on your query
Hope this helps!
Kindly let us know if the above helps or you need further assistance on this issue.
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@Kayak2 We are working to bring native AD join to market as quickly as possible. We’re hoping to have this out asap time frame. We can get your customers in preview as soon as we have it out.
You can share your feedback and experience over email at azurefiles@microsoft.com. Post your ideas and suggestions about Azure Storage on our feedback forum.
. All the feedback you share in these forums will be monitored and reviewed by the Microsoft engineering teams responsible for building Azure.
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Please do not forget to "Accept the answer" wherever the information provided helps you to help others in the community.