Backup to Wasabi Failing with #4304 and "ListBuckets error: AccessDenied"

Harvey

Hello,

I'm facing an issue while trying to archive backup data to Wasabi. The process fails with error #4304 write data error on the front end. The backend logs show a more specific error: ListBuckets error: AccessDenied, Access Denied with address.

The error seems to occur at the very first step when the system attempts to list the buckets. I would like to ask for your advice:

Could this be related to the Wasabi Endpoint configuration?

Are there any specific permissions in the IAM user policy, beyond basic bucket read/write, that are required for the "ListBuckets" action to succeed?

Any troubleshooting tips or guidance would be greatly appreciated. Thank you!

Harvey

Everett Kensington

This error usually occurs when data fails to write to cloud storage. Please check if the customer's Wasabi license is a trial version. Trial versions do not support creating public buckets, which causes the write failure. Switching to a formal license should resolve the issue.