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Member
Posts: 1
Registered: ‎08-15-2017

Re: Sandbox issues: The underlying connection was closed: An unexpected error occurred on a send.

[ Edited ]

System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12;

 

Thank you very much . its saved my time 

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Member
Posts: 1
Registered: ‎12-07-2017

Re: Sandbox issues: The underlying connection was closed: An unexpected error occurred on a send.

where we have to add this code?? When i paste this line of code it is showing doesnot exist in the current context