I have S3 acceleration working well on clients with Cloudberry for Windows, however, for 2 clients I have using MacOS when I run a job and select in job settings enable acceleration the backup fails with 'Access Denied', when I untick this option the backup works albeit slowly.

I am running 2.4.3.11 and this has been an issue always for me. I have confirmed that acceleration is enabled on the bucket using this https://docs.aws.amazon.com/AmazonS3/latest/user-guide/enable-transfer-acceleration.html and have checked in the storage account settings of the managed backup account console.

Any advice would be greatly appreciated as I have TBs of data to back up.

Regards,

Chris