Unity / Arduino wifi communication for multiwii serial protocol

Hello, im using unity to send and recieve socket using serial protocol after converting values and assembling the socket and send it i couldn't get any answer from the arduino considering that when i send it via a socket test android application and write the socket manually (24 4d 3c 00 64 64) in Hex, i get an answer, i think it has somethink with the speed of transmission, this is my code:

 `
     public void setupSocket() {                            // Socket setup here
         try {                
             mySocket = new TcpClient(Host, Port);
             theStream = mySocket.GetStream();
             theWriter = new StreamWriter(theStream);
             theReader = new StreamReader(theStream);
             socketReady = true;
             cnx.Play ();                                //voice assistant "connected"
         }
         catch (Exception e) {
             Debug.Log("Socket error:" + e);                // catch any exceptions
             lostcnx.Play ();                                    //Disconnected voice assistant
         }
     }
     
     public void writeSocket(string theLine) {            // function to write data out
         if (!socketReady)
             return;
         string tmpString = theLine;
         theWriter.WriteLine(tmpString);
         theWriter.Flush();
 
 
 
     }
     
     public string readSocket() {                        // function to read data in
         if (!socketReady)
             return "";
         if (theStream.DataAvailable)
             return theReader.ReadLine();
 
         return "NoData";
     }
     
     

and this is the socket encoding and decoding code :

 `
         
         //send msp with payload
         private List<Byte> requestMSP(int msp, byte[] payload)
         {
             if (msp < 0)
             {
                 return null;
             }
             List<Byte> bf = new List<Byte>();
             foreach (byte c in MSP_HEADER.ToCharArray())
             {
                 bf.Add(c);
             }
             
             byte checksum = 0;
             byte pl_size = (byte)((payload != null ? (int)(payload.Length) : 0) & 0xFF);
             bf.Add(pl_size);
             checksum ^= (byte)(pl_size & 0xFF);
             
             bf.Add((byte)(msp & 0xFF));
             checksum ^= (byte)(msp & 0xFF);
             
             if (payload != null)
             {
                 foreach (byte b in payload)
                 {
                     bf.Add((byte)(b & 0xFF));
                     checksum ^= (byte)(b & 0xFF);
                 }
             }
             bf.Add(checksum);
             return (bf);
         }
         
         void sendRequestMSP(List<Byte> msp)
         {
             byte[] arr = new byte[msp.Count];
             int i = 0;
             foreach (byte b in msp)
             {
                 arr[i++] = b;
             }
             client.writeSocket(BitConverter.ToString(arr)); // send the complete byte sequence in one go
             string output=BitConverter.ToString(arr);
             Debug.Log (output);/*
             for (int l = 0; l < arr.Length; l ++) { 
             Debug.Log (arr [l]);
         }*/
         }
         `

its a multiwii serial protocol, i've tried many possible solution the socket looks correct in the debug messages but i guess the hex value is converted in wrong way before sending, and the baudrate for arduino is 115200 i don't know if i can control the speed of transmition some how or not as in the serial port example it is possible, i appreciate any help it is for my final year project and im running out of time