c# - HTTP request error from framework 4 application -


i try use webservice .net application (.net framework 4, c#, vs 2010) , got exception:

an error occurred while making http request https://... due fact server certificate not configured http.sys in https case. caused mismatch of security binding between client , server.

:error screenshot

does know how fix code?

  servicepointmanager.securityprotocol = securityprotocoltype.tls | securityprotocoltype.ssl3;

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