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Sophos blocking Veeam Agent on Windows 11

Tony Graham

I have a problem with Veeam backup agent with Sophos Endpoint Agent installed

If I uninstall Sophos Endpoint I am able to backup the PC. If Sophos is installed it is blocked.

I assume this is a matter of somehow unblocking the app or opening some ports but as I am a newcomer to Sophos Endpoint it is not clear to me how to accomplish this.

Interestingly I have another machine that I am backing up without issue. There is nothing in any logs Sophos Central or local Windows logs referencing the failing backup.

Thanks for any assistance.



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    Hi Tony,

    Thanks for reaching out to the Sophos Community Forum. 

    Could you let me know if any errors are shown in Veeam or if the backup operation continues running without completion?
    Are both devices on the same local network such that the allowed/blocked domains and ports are the same? 

    As an initial check, I'd suggest checking that Veeam's suggested exclusions are added to Sophos.
    - Veeam Antivirus Exclusions

    Kushal Lakhan
    Team Lead, Global Community Support
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  • +1 in reply to Qoosh

    I am not getting any errors logged anywhere. Both devices are on a local network, the same as the third machine that is working. I would add the exclusions but as I stated I am new to Sophos and do not know where to add those exclusions. Thanks.

    **UPDATE** I was able to get the job working by assigning a Windows Firewall Policy in Sophos Central. However, it is an 'Allow All' policy as I do not see any fine grained options.

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  • +1 in reply to Qoosh

    I am not getting any errors logged anywhere. Both devices are on a local network, the same as the third machine that is working. I would add the exclusions but as I stated I am new to Sophos and do not know where to add those exclusions. Thanks.

    **UPDATE** I was able to get the job working by assigning a Windows Firewall Policy in Sophos Central. However, it is an 'Allow All' policy as I do not see any fine grained options.

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