What version of TLS does my C# program use?

Question

I develop a C# program in Visual Studio 2013 which communicates with a SOAP webservice. How can I tell which version of TLS my program uses?

Answer 1

Another good way to check is to install WireShark (https://www.wireshark.org/download.html)

and to use it while running your application. within the TLS Packets you will be able to see versions and such:

Example for Wireshark View Of TLS traffic...