Issue with connecting / using SOAP API

Topic by Ryan James

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I'm having an issue calling the SOAP API from a local c# application. I am able to add the web service reference and the wsdl gets loaded, however when I try to use the SOAP to retrieve data I get the error below. Presumably its something to do with the SSL setup but I'm not sure what it is as I am able to connect and use the SOAP API of a different customer's site. Attached is a screenshot with the full exception.

The request was aborted: Could not create SSL/TLS secure channel.

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