Wifi Shield - EiFi [Urgent]

[el_supremo]

You aren't reading the device properly. You read one character, if available, but print it whether you read anything or not.
Try changing this:

  if(mySerial.available())
  {
    rcv = mySerial.read();
  }
 
  
  Serial.print(rcv);

to this:

  while(mySerial.available())
  {
    rcv = mySerial.read();
    Serial.print(rcv);
  }

Pete