Advisory: Sophos Endpoint - "Your connection isn't private" We're aware of a certificate issue and are actively working to resolve. Please see: KB-000045954 for the latest updates.

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SEC 5.5.x Certificate Renewal and Endpoints Got Disconnected - CRITICAL

Hi Everyone,

Recently I've renewed Sophos Enterprise Console (On Prem) Certificate following the document mentioned in below given link.

Unfortunately they haven't mentioned to Disable Temper Protection before proceeding. I went through it and I've 2500 machines. If I go manually disabling Temper Protection and then run the VB script in given link then Protect again the endpoint. May kill me.

I need the best practice and quick solution to resolve this issue. Using any script or Group Policy.

I've also logged ticket with Sophos but they are also taking time.

Kindly advise ASAP if there's any solution.


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  • Thank you for sharing this. You're getting the generic error code on one of your SUM servers. As the article advises, you may need to locate the logs of which component is producing this installation failure. Once you get the logs, you can share them with us to check further.

    About the Documentation which you've followed on renewing the certificate. We'll check with our Doc team to amend the content and add the line for Tamper protection. Though by default, any changes that need to be done to any Sophos endpoint manage device need tamper protection to be disabled. 

    Glenn ArchieSeñas (GlennSen)
    Global Community Support Engineer

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