@Stephen Maunder Based on the error 403 the request of the resource could be forbidden for some reason
For better understanding the issue: Have you referred to the prerequisites: https://zcusa.951200.xyz/en-us/azure/storage/files/storage-sync-files-networking-endpoints?tabs=azure-portal
Azure File Sync networking considerations: Private endpoints : https://zcusa.951200.xyz/en-us/azure/storage/files/storage-sync-files-networking-overview
Try to re-configure and let me know the status, If the issue still persist, please share the screenshot the error message.
Let me know the status!
Kindly let us know if the above helps or you need further assistance on this issue.
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