Merge pull request #107383 from jeffpatt24/patch-7

Update storage-troubleshoot-windows-file-connection-problems.md

Author: PRMerger20

articles/storage/files/storage-troubleshoot-windows-file-connection-problems.md

@@ -38,6 +38,14 @@ If virtual network (VNET) and firewall rules are configured on the storage accou
 
 Verify virtual network and firewall rules are configured properly on the storage account. To test if virtual network or firewall rules is causing the issue, temporarily change the setting on the storage account to **Allow access from all networks**. To learn more, see [Configure Azure Storage firewalls and virtual networks](https://docs.microsoft.com/azure/storage/common/storage-network-security).
 
+### Cause 3: Share-level permissions are incorrect when using identity-based authentication
+
+If users are accessing the Azure file share using Active Directory (AD) or Azure Active Directory Domain Services (Azure AD DS) authentication, access to the file share will fail with "Access is denied" error if share-level permissions are incorrect. 
+
+### Solution for cause 3
+
+To update the share-level permissions, see [Assign access permissions to an identity](https://docs.microsoft.com/azure/storage/files/storage-files-identity-auth-active-directory-domain-service-enable#assign-access-permissions-to-an-identity).
+
 <a id="error53-67-87"></a>
 ## Error 53, Error 67, or Error 87 when you mount or unmount an Azure file share