C# Sample Does not work in Sandbox now that TLS setings have been changed

plawrencejr1961 — Mon, 12 Jun 2017 16:22:57 GMT

I have Windows 2012 server and I have gone into the regersity and have disabled TLS 1.0 and TLS 1.1.

When I run the C# sample that charges credit card. I get the following error on the lines

try
{
controller.Execute();
}
catch (Exception mm)
{
Console.WriteLine("Error: " + mm.Message);
}

I get an exception error: the underlying connection was closed: An unexpected error occurred on a send.

Does anyone have any ideas why I am getting this error?

Re: C# Sample Does not work in Sandbox now that TLS setings have been changed

NexusSoftware — Mon, 12 Jun 2017 20:57:48 GMT

Try :

 System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;

in your function that posts the XML.