ASP.Net Error: Authentication failed because the remote party has closed the transport stream

You need to set

ServicePointManager.SecurityProtocol= SecurityProtocolType.Ssl3

Refer the below links for your reference.

Authentication failed because the remote party has closed the transport stream exception when getting a response from webservice

Authentication failed because the remote party has closed the transport stream

Authentication failed because the remote party has closed the transport stream

kalpesh says:

You need to set

1	ServicePointManager.SecurityProtocol= SecurityProtocolType.Ssl3

Where i need to put that line in my web application project ..

 

UnsaShaikh says:

Where i need to put that line in my web application project ..

 You can add it before getting the HTTPResponse from request.