Windows Server Backup Completed with warnings

[BSkyoung]

We have a server running Windows Server 2016 Essentials with Windows Server Backup backing up to a WD My Passport external hard drive. Over the past year, we've seen random warnings where backups were "Completed with warnings" and the bare metal restore portion failed. These warnings happen inconsistently from once a month to several times a month (6 times last month). We don't see any patterns that cause it to fail or succeed. There aren't any other scheduled tasks or backups running during this time.





The eventlog has several errors at the backup time:

1. Source: DeviceSetupManager Event ID: 131 - Metadata staging failed, result=0x8007000D for container '{00000000-0000-0000-FFFF-FFFFFFFFFFFF}'

2. Source: VSS Event ID: 8229 -

A VSS writer has rejected an event with error 0x800423f2, The writer's timeout expired between the Freeze and Thaw events.
. Changes that the writer made to the writer components while handling the event will not be available to the requester. Check the event log for related events from the application hosting the VSS writer.

Operation:
Thaw Event

Context:
Execution Context: Writer
Writer Class Id: {afbab4a2-367d-4d15-a586-71dbb18f8485}
Writer Name: Registry Writer
Writer Instance ID: {f2595c5a-ccdf-4122-aa1e-d7fff661237e}
Command Line: C:\Windows\system32\vssvc.exe
Process ID: 7764

3. Many Source: SPP errors Event ID: 16389

Writer System Writer experienced retryable error during shadow copy creation. Retrying... More info: .

Writer ASR Writer experienced retryable error during shadow copy creation. Retrying... More info: .

Writer Shadow Copy Optimization Writer experienced retryable error during shadow copy creation. Retrying... More info: .

Writer FRS Writer experienced retryable error during shadow copy creation. Retrying... More info: .

Writer Registry Writer experienced retryable error during shadow copy creation. Retrying... More info: .

Writer COM+ REGDB Writer experienced retryable error during shadow copy creation. Retrying... More info: .

Writer MSSearch Service Writer experienced retryable error during shadow copy creation. Retrying... More info: .

Writer Windows Server Storage VSS Writer experienced retryable error during shadow copy creation. Retrying... More info: .

Writer WMI Writer experienced retryable error during shadow copy creation. Retrying... More info: .

Writer Certificate Authority experienced retryable error during shadow copy creation. Retrying... More info: .

Writer NTDS experienced retryable error during shadow copy creation. Retrying... More info: .

Writer IIS Config Writer experienced retryable error during shadow copy creation. Retrying... More info: .

Writer Dhcp Jet Writer experienced retryable error during shadow copy creation. Retrying... More info: .

Writer IIS Metabase Writer experienced retryable error during shadow copy creation. Retrying... More info: .

4. Source: Disk Event ID: 51 - An error was detected on device \Device\Harddisk2\DR133 during a paging operation.

5. Many Source: FilterManager Event ID: 3 - Filter Manager failed to attach to volume '\Device\Harddisk2\DR134'. This volume will be unavailable for filtering until a reboot. The final status was 0xC03A001C.


We tried the following without success:

1. Replacing backup drive
2. Increase freeze-thaw timeout per https://success.solarwindsmsp.com/k...Freeze-and-Thaw-events?q=VSS error 0x800423f2

Any help would be appreciated, thanks.

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