VSS and Carbonite

Question

I have a web server that is being backup using Carbonite Server backup. At random times the backup fails on the VSS initializing step. The only way I can get it to work is to restart the server and restart the job. This gets it working, but it could fail the next day or next week. I have edited my VSS backups from every two hours to twice a day and moved back up to a later hour, but it still happens. I contacted Carbonite and from what they could tell it is a Windows issue, since the backup builds/depends on Windows VSS. Has anyone had this issue before? I'm stumped. I've attached the error message, but it doesn't give any information.

Answer 1

Hi David,
I did some research but I didn’t find many official documents about this issue. I’m not sure if it works but maybe you would like to try this:
https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/dfsn-access-failures
https://adminspeak.wordpress.com/tag/dfs-event-id-4412/
Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.

For deeper investigation I would suggest that you raise a MS support ticket. Please note that if the issue has been proved as system flaw, the consulting fee would be refund. You may find phone number for your region accordingly from the link below.
Global Customer Service phone numbers:
https://support.microsoft.com/en-us/help/13948/global-customer-service-phone-numbers

Thanks for your time.
Best regards，
Danny

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