Hang in CC3100.CallFunction on network request within event handler of Go Button #3

mscorlib.dll!System.Threading.WaitHandle.WaitOne(int millisecondsTimeout, bool exitContext)  
[Managed to Native Transition] 
Netduino.IP.LinkLayers.CC3100!Netduino.IP.LinkLayers.CC3100.CallFunction + 0xcb bytes      
Netduino.IP.LinkLayers.CC3100!Netduino.IP.LinkLayers.CC3100.sl_Socket + 0x29 bytes      
Netduino.IP.LinkLayers.CC3100!Netduino.IP.LinkLayers.CC3100SocketNative.socket + 0x60 bytes      
[Native to Managed Transition] 
[Managed to Native Transition] 
Microsoft.SPOT.Net.dll!Microsoft.SPOT.Net.SocketNative.socket(int family, int type, int protocol) + 0x2e bytes           
System.dll!System.Net.Sockets.Socket.Socket(System.Net.Sockets.AddressFamily addressFamily, System.Net.Sockets.SocketType socketType, System.Net.Sockets.ProtocolType protocolType) Line 41 + 0x28 bytes      C#
System.Http.dll!System.Net.HttpWebRequest.EstablishConnection(System.Uri proxyServer, System.Uri targetServer) Line 1393 + 0x189 bytes   C#
System.Http.dll!System.Net.HttpWebRequest.SubmitRequest() Line 1481 + 0x20 bytes           C#
System.Http.dll!System.Net.HttpWebRequest.GetResponse() Line 1700 + 0xd bytes             C#
BuildTrigger.exe!BuildTrigger.Program.SendRequest() Line 79 + 0x27 bytes              C#
BuildTrigger.exe!BuildTrigger.Program.Button_ButtonPressed(object sender, bool isPressed) Line 44 + 0x23 bytes       C#
NetduinoGo.Button.dll!NetduinoGo.Button.OnInterrupt() Line 59 + 0x1e bytes         C#
GoBus.dll!GoBus.GoModule._interruptPort_OnInterrupt(uint data1, uint state, System.DateTime