dhiraj
It is possible that a switch could fail after a week in service. Are there any lights lighted up or blinking on the switch? If you connect a PC to the console port do you get any response or any output on the console? If you connect a PC to the console port and power cycle the switch do you get output on the console? If you will answer these questions we may get closer to solving your problem.
HTH
Rick
HTH
Rick
