REST API Error: S3 Error: The difference between the request time and the current time is too large / Invalid Credentials for Amazon S3

KB ID: 4248
Product: Veeam Backup & Replication | 9.5 | 10 | 11
Published: 2021-12-09
Last Modified: 2021-12-10
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Challenge

This article covers two different errors that occur when performing different tasks, but have the same root cause:

  • When adding S3 Object Storage to Veeam Console, Veeam displays the follow error:
Failed to list S3 buckets: check if the specified account has required permissions
REST API Error: 'S3 Error: The difference between the request time and the current time is too large.
Code: RequestTimeTooSkewed'
screenshot of error
  • Job fails during Offload after the backup job runs, with error:
Invalid credentials for Amazon S3 endpoint. See logs for details.
screenshot of error
Click to Expand and view log file examples
In the Task Logs, it will be as below:
Error    Amazon REST error: 'S3 error: The difference between the request time and the current time is too large.. Code: RequestTimeTooSkewed', error code: 403. 
Other: RequestTime: '20210721T040936Z', ServerTime: '2021-07-17T10:12:34Z', MaxAllowedSkewMilliseconds: '900000'
If the error occurs during SOBR Offload, it will be visible in ArchiveCleanup.Gate Log as below:
aws      | WARN|HTTP request failed, retry in [120] seconds, attempt number [20], total retry timeout left: [223] seconds
aws      | >>  |REST API error: 'S3 error: The difference between the request time and the current time is too large.
aws      | >>  |Code: RequestTimeTooSkewed', error code: 403
aws      | >>  |tr:Request ID: 
aws      | >>  |Other: RequestTime: '20210720T101336Z', ServerTime: '2021-07-17T10:13:41Z', MaxAllowedSkewMilliseconds: '900000'

Cause

The failure occurs because AWS allows for a maximum of 15 minutes of time stamp variation between the server and Gateway Server (Client). 

Solution

Review system time synchronization on Gateway Server specified when configuring the Object Storage Repository. If the gateway server is not explicitly specified, review system time synchronization on the Veeam Backup Server and Scale-Out Backup Repository - Performance Tier Extents. 

More Information

If the issue persists, refer to AWS-Thread204472
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