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Excel Timoeouts in SharePoint and office 365

David Jumbi

Hi

I have a Sophos XG 125. Users in the office experience a lot of timeouts and sluggish behavior when using online excel documents more so those on SharePoint. I have included the required exemptions as per the below link but the problem persists. Users who are working from home do not experience this issue so has to be something in the office premise network. Kindly help in troubleshooting this

support.sophos.com/.../KB-000038173



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    the Sophos template is outdated (May) and they do not publish updates to the list as soon as MS is changing things. you may need to add/remove some URL and IP ranges into the exceptions.

    Compare with the list here: https://docs.microsoft.com/en-us/microsoft-365/enterprise/urls-and-ip-address-ranges?view=o365-worldwide

    What did you import?

    • API-O365-all.tar – this is a comprehensive set of 108 exceptions, every web URL that Microsoft list
    • API-O365-required.tar – this a subset of 50 exceptions corresponding to the groups that Microsoft says are ‘required’
    • API-O365-minimal.tar – this is a subset of 10 exceptions that correspond to the groups Microsoft says are

    To debug: recreate the issue with one user, check the logviewer and look for requests without filtering exceptions. as already posted here shortly: community.sophos.com/.../skype-chat

    Then evaluate if those requests belong to O365 and update exceptions accordingly.

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  • 0

    the Sophos template is outdated (May) and they do not publish updates to the list as soon as MS is changing things. you may need to add/remove some URL and IP ranges into the exceptions.

    Compare with the list here: https://docs.microsoft.com/en-us/microsoft-365/enterprise/urls-and-ip-address-ranges?view=o365-worldwide

    What did you import?

    • API-O365-all.tar – this is a comprehensive set of 108 exceptions, every web URL that Microsoft list
    • API-O365-required.tar – this a subset of 50 exceptions corresponding to the groups that Microsoft says are ‘required’
    • API-O365-minimal.tar – this is a subset of 10 exceptions that correspond to the groups Microsoft says are

    To debug: recreate the issue with one user, check the logviewer and look for requests without filtering exceptions. as already posted here shortly: community.sophos.com/.../skype-chat

    Then evaluate if those requests belong to O365 and update exceptions accordingly.

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