ServicePointManager.SecurityProtocol |= SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12; in vb.net code example
Example: servicepointmanager.securityprotocol = securityprotocoltype.tls12 vb.net sample code
Imports System.Net
Imports System.Web.Optimization
Public Class MvcApplication
Inherits System.Web.HttpApplication
Protected Sub Application_Start()
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12
AreaRegistration.RegisterAllAreas()
FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters)
RouteConfig.RegisterRoutes(RouteTable.Routes)
BundleConfig.RegisterBundles(BundleTable.Bundles)
End Sub
End Class