UDP/socket Receive issues

[killingseed]

trying to setup a connection with a UDP client.
i can connected to it and send to it. Receiving is an issue.
the receive seems to get data as the buffer size is right.
i know this because i check with a packet sniffer but yet, when i convert the buffer it returns nothing. i am sure it has something to do in this area "returnData = Encoding.Default.GetString(recBytes, 0, recBytes.Length);"

udpConn = new UdpClient(HostIP, hostPort);
IPEndPoint RemoteIpEndPoint = new IPEndPoint(IPAddress.Any,0);

string sendstr = "hello";
Byte[] sendBytes = Encoding.Default.GetBytes(sendstr);
udpConn.Send(sendBytes, sendBytes.Length);

string returnData = "";
Byte[] recBytes = null;

recBytes = udpConn.Receive(ref RemoteIpEndPoint);


returnData += Encoding.Default.GetString(recBytes, 0, recBytes.Length);

txtconsole.AppendText(Environment.NewLine + "returnData " + returnData.Length);

returnData = Encoding.Default.GetString(recBytes, 0, recBytes.Length);

txtconsole.AppendText(Environment.NewLine + "This is the message you received " +
returnData.ToString());

txtconsole.AppendText(Environment.NewLine + "This message was sent from " +
RemoteIpEndPoint.Address.ToString() +
" on their port number " +
RemoteIpEndPoint.Port.ToString());

txtconsole.AppendText(Environment.NewLine + "receiveBytes.Length " +
recBytes.Length.ToString() +
" returnData.Length " +
returnData.Length.ToString());

[DataMiser]

So what is being sent and what are you seeing show up in the console window?

[killingseed]

console window show nothing. if i break point this line i can see the data in both the "returnData" and recBytes. the raw data has extra \x0 in string.

returnData = Encoding.Default.GetString(recBytes, 0, recBytes.Length);

when i figured that data was there i added a replace ()
returnData = Encoding.Default.GetString(recBytes, 0, recBytes.Length).Replace("\x0",";");

now the string passes to he console window. now it turns into a differnt question

what would be the easyest way to remove all the extra "\x0" bits from the byte before i convert to a string. or is the way i am going it ok?