Rick Strahl's Weblog
Rick Strahl's FoxPro and Web Connection Weblog
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Web Connection and TLS 1.2 Support

March 01, 2018

This week Authorize.NET switched of support for TLS 1.0 and 1.1, requiring all clients to use TLS 1.2. No surprise this was announced two years ago, but as is often the case two years is a long time away and so many were still caught off guard if you're running an oldish version of Windows. In this post I look at what versions of Windows don't support TLS 1.2 and how you can enable TLS 1.2 in those versions that didn't originally have support but can enable it. Unfortunately there are also several versions of Windows that don't support TLS 1.2 and we'll cover that too.