Determine the hardware failure of the device through the indicator light
100M, link/act lights are not bright, usually corresponding to CPU port damage. (2) only 100M lights. (3) 100M, link/act light
the SYS lamp is on or off. After the start of the SYS lamp is on or off. Two. Ethernet port and DMZ port lights common abnormal phenomenon
External power supply may also be caused by damage to the router power
PWR does not light, may cause damage to the switching power supply line, lights off.
