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Unable to activate a license on Windows Server 2012

by SethChristopher 2 weeks ago (61 Views)

Symptoms

Unable to activate a license on Windows Server 2012 with Error 51404 = flxActTransactionSend: GEN: Failed to send request. Unable to connect to server

Diagnosis

This problem is caused by TLS 1.2 not being enabled by default on Windows Server 2012 operating system.

Solution

To enable TLS 1.2 open Internet Explorer and go to Internet Options, under the advanced tab scroll down to security and check “Use TLS 1.2”

TLS.png

 

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