I'm very disappoined about the ND2 network quality.

I solved the problem opening the socket in a new thread. If it hangs not freeze the main thread.

But at long time, I have hangs on the ND2, only if the Ethernet cable is pluged.

I try to change to UDP sockets, with less hangs, but many as desired.

No good quality for me, not for industrial use!

As I mentioned, you must implement your own ReadLine method.

This is a simple implementation. Not tested, and four sure, not the best implementation.

	public bool SearchText(string fileName, string textToFind)        {		var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);		string line="";		while(line!="ERROR")		{            			line=ReadLine(fs);			if(line==textToFind)			{				fs.Close();				return true;			}                }		fs.Close();                return false;        }	private static string Readline(FileStream fs)        {            try            {                byte[] buffer = new byte[1024];                byte b = 0;                byte r = 0;                int l = 1024;                for (int n = 0; n < 1024; n++)                {                    b = (byte)fs.ReadByte();                    if (b == 13)                    {                        r = (byte)fs.ReadByte();                        if (r == 10)                        {                            l = n;                            break;                        }                        else                        {                            buffer[n] = b;                            n++;                        }                    }                    bufer[n] = b;                }                string line = new string(Encoding.UTF8.GetChars(buffer, 0, l));                return line;            }            catch            {                return "ERROR";            }        }

Hope it helps!

I changed StreamReader to FileStream and it Works, but you must to implement the ReadLine method.

Right (or not), StremReader has a bug, at least for me. FileStream seams to work, at least for now!

Today I take the same error without any change on the code nor ND+2.

I changed StreamReader way by FileStream, and it works fine, but with more code.

I setup network interface to static in every start. I never use DHCP on this devices.

To disable network, I unplug the Ethernet cable!

I re-flashed one ND+2, and now the same program Works!

I can't reproduce the error!

@Nutz95, do you use Ethernet connection at same time, TCP Listener or Socket?

Today I making test without Ethernet connection, and it Works!

I have this exception Reading files in the 101 line of the file!

I have the same problema in c#. I open a file with StreamReader, and I can read entire file.

But if the file has more tan 100 lines, the ReadLine method fails with the System.IndexOutOfRangeException.

var sr = new StreamReader(fichero);while (!sr.EndOfStream){	string t = sr.ReadLine();	if (t == itemToSearch) return true;}sr.Close();

I open a new thread and connect from this new thread, it hangs the threat, but not the entire program.

However, the ND2 hangs after 1 or 2 days. If I unplug the Network cable it not hangs!

Hello:

I have several (12) NP2 with 4.2.2 firmware.

I use an IP socket to request the time to a server. Simply send "DATETIME" and it returns the time.

When I use socket.connect, and the server is down, the program hangs. No exception and no continue.

This is the simple code:

var ipB=new byte[]{ 192, 168, 0, 100 }var ep = new IPEndPoint(new IPAddress(ipB), 4000);Debug.Print("Connecting...");soc.Connect(ep);Debug.print("Connected!");

The console shows "Connecting...", but never "Connected!" or exception is the server/service is down.

To avoid hang of the NP2, I run this code in a new Thread. The application still running, but never continues to "Connected!", and the application hangs after time (minutes/hours).

Curiosity: If I abort the socket thread, I receive an IO exception when try to write to the SD card and when try to Access to IO ports.

Any suggestion?

Thanks for your time!

Hello:

If there a firmware update for NP2 to MicroFramework 4.3?

Thanks for your time!