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Sophos Endpoint Security and Control installer and SonicWALL

SurajPatel

I am trying to migrate my Sophos Endpoint Console computers to the Sophos Cloud environment. I used the migration tool and selected the desired machines I wanted to migrate to the new console.

When I checked back the next morning, all of the machines had an error saying that the could not connect to the Sophos servers. i checked and read about firewalls and that there was probably a rule in place that was preventing the Sophos tool from communicating with the Sophos servers. And indeed there was, there were rules that allow for mail and web traffic, but denies everything else.

I've checked the logs and it says that it can connect to dci.sophos.net/com fine, but then there is an error:

ERROR,Failed to send a WinHttp request. The error code was 12175 (A security error occurred).,

ERROR, Failed to connect to https://dzr-mcs-amzn-eu-west-1-9af7.upe.p.hmr.sophos.com/sophos/management/er.,

 

Does anyone know how to fix this?

 

Dave



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  • +1 in reply to Danie de Jager

    I resolved my issue but not sure if this will fix yours! I use IISCrypto to harden the device's Security and disabled TLS 1.0. Seems the installer is using that to do tests to Sophos servers. As soon as I enabled TLS 1.0 again I was able to complete the installation. Worried that if I disable TLS 1.0 after the install completes that the agent won't update correctly. Will check it out.

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