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

[AliLandau]

I am using the sandbox to test Authorize.net in Dynamics AX. I am getting this error

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel.

I have upgraded to .net 4.6 but still getting the error.

[NexWeb]

using System.Security.Authentication;
using System.Net
// Prior to your web request ...
          const SslProtocols _Tls12 = (SslProtocols)0x00000C00;
          const SecurityProtocolType Tls12 = (SecurityProtocolType)_Tls12;
          ServicePointManager.SecurityProtocol = Tls12;

[njsimha30]

NexWeb, I had the same issue and your solution worked. Thanks.

[NexWeb]

@njsimha30, very good. Glad to hear it.

[digioz]

This is great @NexWeb . Thanks for the help!

[bhautik1907]

@NexWeb You are a LEGEND! Thanks

[MikeOtown]

VB version?