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CHAPTER 4: TROUBLESHOOTING
The following table provides information for users to easily troubleshoot problems by taking actions based on the suggested
solutions.
TABLE 4-1. TROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSE
SUGGESTED SOLUTIONS
System LED is OFF
The switch is not receiving power
1. Check if correct power cord is connected firmly to the switch and
to the AC/DC outlet socket.
2. Perform power cycling the switch by unplugging and plugging the
power cord back into the switch.
3. If the LED is still off, try to plug power cord into a different AC/DC
outlet socket to make sure correct AC/DC source is supplied.
Port Status LED is OFF
The port is not connected or the connection
is not working
1. Check if the cable connector plug is firmly inserted and locked into
the port at both the switch and the connected device.
2. Make sure the connected device is up and running correctly.
3. If the symptom still exists, try a different cable or a different port,
in order to identify if it is related to the cable or specific port.
4. Check if the port is disabled in the configuration settings via the
Web user interface.
