4 replies to this topic

[NeonMika / Markus VV.]

I have the following code lines:

if (explicitDHCP)
{
var interf = NetworkInterface.GetAllNetworkInterfaces()[0];
interf.EnableDhcp();
interf.RenewDhcpLease();
}

_OnboardLed = ledPort;

this._PortNumber = portNumber;
_ListeningSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_ListeningSocket.Bind(new IPEndPoint(IPAddress.Any, portNumber));
_ListeningSocket.Listen(10);

I tried different settings (explicitDHCP setting, static IP via MFDeploy, ...), but the code just seems to stop debugging at

_ListeningSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

Does anyone know this issue?

Greets, Markus

[NeonMika / Markus VV.]

I don't want to shout now, but i plugged out my Netduino for 2 hours now, plugged it in again just because I wanted to give it a last try... and code is running now... But no network cable plugged in... I think it has to do something with the network connection... I will dig into that...

[Chris Walker]

Hi Markus, Are you sure that your code is stopping at that line...and not at one of the next lines (Bind, etc.)? The first line is just creating an object in memory... Please continue to share your experience. Also, please let us know which version of firmware you are running. Chris

[NeonMika / Markus VV.]

Ok, following scenario: Keeping my network cable unplugged during deploying code from PC to Netduino, everthing works fine. My code starts running on the N+, then i plug in my nw cable and I can connect to it. If I have my networkcable plugged in, it stops at the line shown above. I attached a picture of my network settings, it's a one to one connection between PC and Netduino. Could it be due to the wrong gateway settings that the creation fails? Shouldn't there be at least an exception? Greets, Markus

Attached Files

•  NetworkSettings.png   141.43KB   16 downloads

[Arron Chapman]

Markus, have you added a few breakpoints to verify that it is that line which is failing? Could you wrap the entire block in a try/catch and see what exception is being thrown?