There are 2 ethernet ports in my office which are exactly the same except that one supplies power and the other does not. UDP messages can still reach a computer connected to the ethernet port which supplies power when the computer is put to standby. However, UDP messages are not able to reach the computer during the 1st 30 secs of entering standby when the computer is connected to the ethernet port which has no power.
Does anyone know why there is a difference in behavior when the computer is connected to these 2 ethernet ports? How does power supplied from ethernet port affects the computer's behavior during the initial phase of standby?
Any help would be much appreciated. Thanks.