Cloud EP/IR Agent failing on Windows Server 2008

Document created by jross Employee on Aug 2, 2017Last modified by rsullinger on Aug 3, 2017
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Issue

The endpoint agent install successfully but fails to register into the Cloud console.

Error in logs: "The client and server cannot communicate, because they do not possess a common algorithm."

 

Cause

This is due to Server 2008 not supporting TLS 1.1. and 1.2 by default.

 

Resolution

 

  1. Update server to 2008 SP2
  2. Install KB4019276
  3. Enable TLS 1.1 and 1.2 on the server

 

Windows Server 2008 SP2 can be downloaded from this link: https://www.microsoft.com/en-us/download/details.aspx?id=16468

 

KB4019276 and instructions for enabling TLS 1.1 and 1.2 can be found on this link: https://support.microsoft.com/en-us/help/4019276/update-to-add-support-for-tls-1-1-and-tls-1-2-in-windows-server-2008-s

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