How do we trouble shoot a long-running NETMF program that stops in production?

Question

Situtation

I have a FEZ Cobra II NET running test code. It sends data every second to a server on the LAN. The server writes the data to a text file

Answer 1

As the Fez has a memory card slot, you could log send errors to that:

private void TimerCallback_SendSbcData(object stateInfo)
{
    try
    {
        SbcData data = new SbcData();
        this.network.Send(data);
    }
    catch (Exception ex)
    {
        MyLogToCardMethod(ex.ToString());
    }
}

Mounting the card instructions are on the manufacturer site:

https://www.ghielectronics.com/docs/51/netmf-file-system