Diagnosing With The Leds - HP ProCurve 420 Installation And Getting Started Manual

Diagnosing with the LEDs

Table 4-1 shows LED patterns on the access point that indicate problem
conditions.
1.
2.
Table 4-1.
Off with power cord plugged in
Off without power cord plugged in,
* This LED is not important for the diagnosis.
†
The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.
Diagnostic Tips:
Tip Problem
1
The access point 1. Verify that the power cord is plugged into an active power source and to the access
is not plugged
into an active AC
2. Try power cycling the access point by unplugging and plugging the power cord back in.
power source, or
3. If the Power LED is still not on, verify that the AC power source works by plugging
the access
point's power
supply may have
If the power source and power cord are OK and this condition persists, the access point's
failed.
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.
Check in the table for the LED pattern that you see on your access point.
Refer to the corresponding diagnostic tip on the next few pages.
LED Error Indicators
LED Pattern Indicating Problems
Power
but linked to a PoE source
†
Prolonged Blinking
On
On
On
point. Make sure these connections are snug.
another device into the outlet. Or try plugging the access point into a different outlet
or try a different power cord.
Diagnosing with the LEDs
Wireless LED 10/100-T LED
* *
* *
Off *
* Off with cable
connected
* On, but the port is not
communicating
Solution
Troubleshooting
Diagnostic
Tips
1
2
3
4
5
6
4-3