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freeze/thaw VSS failures when Sophos AV is utilized

Unitrends has an article (5520, https://support.unitrends.com/UnitrendsBackup/s/article/ka040000000PmjMAAS/000005520?_ga=2.69789140.576488646.1505169382-1745831295.1501935182) on getting freeze/thaw VSS failures on devices running Sophos A/V when doing backups. 

I've got one server experiencing this with Unitrends. I've got another server with Windows Server Backups that keep failing , but I haven't tried uninstalling Sophos on the 2nd one yet to verify that this this the same issue.

 

is there any official word from Sophos on this? Has anyone else experienced this? 

 



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  • When can we expect an update from Microsoft? Within several weeks, months, years? We are experiencing problems since several months now.....

  • I can confirm this problem also exists on our Server 2016 Essentials with Acronis Backup 12.5 Standard Server. I disabled Tamper Protection and Sophos Health Service for now, but this leaves us in a very uncomfortable situation. Our customer has no internal IT and we provide all IT Services for him, but it is crucial for us to have all remote management informations. Now we are blind in terms of Sophos Server Protection.

  • Hi is there a time period where the problem will be fixed?

    Because this thread is open a very long time now.

  • Hi Everyone,

    I completely understand that this issue is open for quite some time. Microsoft is now working to release a fix and back-port the fix to Windows Server 2016. In addition to the fix from Microsoft, we have developed and are currently testing a workaround for the Sophos Central Server Protection product that will enable affected customers to configure the Sophos Health Service polling interval via a registry key, thus avoiding the conflict. We will provide a further update when we have confirmed dates for both the Microsoft and Sophos releases.

    Regards,

    Gowtham Mani
    Community Support Engineer | Sophos Technical Support

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