I’ve been backing up my data to OneDrive using cloud sync for the past few years, until I recently reported an error that didn’t sync. I retrieved the credentials but to no avail. Error message Failed to cancel multipart upload: unauthenticated: Unauthenticated (upload failed due to: unauthenticat…

Is your TrueNAS software up to date.??.. clouds change.

I updated immediately after discovering the problem. My current version is TrueNAS-13.0-U6.4. The problem is not solved.

The “unauthenticated” seems to be the clue… can you check your onedrive credentials?

I reacquired the onedrive credentials. The credential test was fine. But the actual sync got an error.

Truenas seems to use rclone for synchronization. I searched and found that the old version of rclone has similar problems. But I have no way to upgrade rclone.

It looks like a candidate feature for Fangtooth https://ixsystems.atlassian.net/browse/NAS-131562

OneDrive Cloud Sync Error

TrueNAS General

Johnny_Fartpants January 4, 2025, 8:00am 7

This may be helpful [Accepted] OneDrive Cloud sync - #5 by william

Topic		Replies	Views
OneDrive credential valid but sync fails with authentication error TrueNAS General CORE	1	98	June 3, 2025
TrueNAS Core 13.0 - can't refresh/establish OneDrive cloud credentials TrueNAS General CORE	1	128	September 30, 2024
Cloud Sync Task TrueNAS General software	1	125	October 15, 2025
OneDrive unauthenticated: Unauthenticated TrueNAS General	2	296	April 28, 2024
OneDrive Sync fails due to "unauthenticated" -Error TrueNAS General CORE	16	2103	July 29, 2026

OneDrive Cloud Sync Error

Related topics