Web Client Exception: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel

Question

I have a simple app that uses the C# Web Client class to download a websites HTML. This is a stripped down sample of the code I\'m using:

WebClient wc = new Web         


        

Answer 1

I had this issue with message:

Could not establish trust relationship for the SSL/TLS secure channel.

I was connecting to a web service on an Apache server using a .NET client. This is what corrected the problem for me.

(proxy).UserAgent = "Apache-HttpClient/4.1.1 (java 1.5)";