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SSL_Error_Bad_Mac_Alert

Hi everyone,

since some weeks we and our customers are facing the issue that all of a sudden the user is not able to use google anymore.

If he tries to google something he gets the error mentioned in the subject. The only solution is to close the browser, wait a few seconds and open it again.

This error usually occurs multiple times a day. It happens with chrome browser and also firefox. We are using Sophos Central Intercept X Advanced and it looks like the software is causing the problem. There is also another tread here in the forum where user confirm this problem but without any solution so far.

Any help is greatly appreciated.

Thank you!

Greetings Aktuator



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  • Thank you for the information!

    When will this problem/bug be fixed in Sophos Endpoint? It is actually a big problem for many users, the workaround with changing the configuration helps but this could not be the final solution, am I wrong?

  • Core Agent version 2022.3 has been tested with some customers returning promising results in relation to this issue. We do not yet have a timeline as to when you can expect this Core Agent version to be released, however, if you are experiencing significant issues in your environment, I recommend opening a support case to see if you can get this version sooner. 

    Kushal Lakhan
    Team Lead, Global Community Support
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