I have a Windows server 2008 R2 server running a dozen .NET Framework 4.0 WebForms applications, and I need to disable TLS 1.0 and lower. When I do that, all secure connections fail and I was forced to re-enable TLS 1.0. Is there any way to use TLS 1.2 in a framework 4.0 environment? Perhaps I am missing something?
Also, due to limitations of the version CMS we are using, we cannot upgrade the Framework at this time.
the only way i have found to change this is directly on code :
at the very beggining of your app you set
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
you should include the
i did this before calling a web service because we had to block tls1 too