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Diagnostic Tips:
Tip
Problem
➊
The unit is not
1. Verify the power cord is plugged into an active power source and to the unit. Make
plugged into an
active AC power
2. Try power cycling the unit by unplugging and plugging the power cord back in.
source, or the
3. If the Power LED is still not on, verify that the AC power source works by plugging
unit's power
supply may have
failed.
If the power source and power cord are OK and this condition persists, the unit's power
supply may have failed. Call your HP-authorized LAN dealer, or use the electronic support
services from HP to get assistance. See the Customer Support/Warranty booklet for more
information.
➋
A hardware
Try power cycling the unit. If the fault indication reoccurs, the unit may have failed. Call
failure has
your HP-authorized LAN dealer, or use the electronic support services from HP to get
occurred. All the
assistance. See the Customer Support/Warranty booklet for more information.
LEDs will stay on
indefinitely.
➌
The unit has
Try resetting the unit by power cycling the unit.
experienced a
If necessary to resolve the problem, contact your HP-authorized LAN dealer, or use the
failure.
electronic support services from HP to get assistance. See the Customer Support/
Warranty booklet for more information.
➍
The port for
An over-current condition may have been caused by a connected device. Unplug the
which the LED is
cable connected to the port, then plug it back in. If the condition returns, carefully power
flashing has
cycle the unit (be careful that other devices connected to the unit will not be adversely
experienced a
affected). If the fault indication reoccurs, the unit port may have failed. Call your HP-
failure.
authorized LAN dealer, or use the electronic support services from HP to get assistance.
See the Customer Support/Warranty booklet for more information.
➎
The connection
Try the following procedures:
is not working
• For the indicated port, verify that both ends of the cabling, at the unit and the connected
properly.
• Verify the connected device and unit are both powered on and operating correctly.
• If the other procedures don't resolve the problem, try using a different port or a different
➏
EPS power is not
Check the log file of the connected switch for more detailed information. Try
available.
disconnecting, then reconnecting the EPS cable. Wait three to four seconds for the device
to successfully communicate for EPS power. Also try another EPS cable. If this fails to
restore EPS power, call your HP-authorized LAN dealer, or use the electronic support
services from HP to get assistance. See the Customer Support/Warranty booklet for more
information.
sure these connections are snug.
another device into the outlet. Or try plugging the unit into a different outlet or try a
different power cord.
device, are connected properly.
cable.
Diagnosing with the LEDs
Solution
Troubleshooting
3-3
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