Glad to know the issue was resolved and thank you for sharing the solution. I am just summarizing the solution achieved here for community benefit. It will be helpful if you could mark the answer as accepted as it will help any other community member facing similar issue.
Issue:
You were getting an Azure FileSync Server Endpoint error with Error code 0x80C83099 where the Private endpoint configuration access was vblocked.
Troubleshooting steps followed:
To test if the private endpoint has been correctly configured, you can follow the steps mentioned here.
- Run the nslookup command
nslookup <storage-account-name>.file.core.windows.net
to determine if it resolves the private-endpoint's private IP. - Run the PowerShell script mentioned here to test that your private endpoint has been set up correctly.
Solution achieved:
You were able to figure out that the Private Endpoint DNS entry for Storage Sync Service was not set to correct zone.
Once it was mapped to correct DNS zone, sync is now working fine.