|I'm not sure what you're asking.|
Where/how are you checking the bytes sent as versus bytes recieved?
What is your concern about the difference?
Just quickly I will say this. If your internet connection is functioning correctly, then nothing is broken and you really needn't worry.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.