Hardware Diagnostic Tests; Testing The Access Point By Resetting It; Checking The Access Point's Leds; Checking Event Messages - HP ProCurve 420 Installation And Getting Started Manual

Troubleshooting

Hardware Diagnostic Tests

Hardware Diagnostic Tests

Testing the Access Point by Resetting It

If you believe that the access point is not operating correctly, you can reset
the access point to test its circuitry and operating code. To reset an access
point, either
C a u t i o n
If you hold the reset button down for 5-10 seconds, you reset the board and
reload the factory default settings. See "Restoring the Factory Default Config­
uration" on page 4-8.
Power-cycling the access point and pressing the Reset button both cause the
access point to perform its power-on self test, which normally resolves any
temporary operational problems. These reset processes also cause any
network traffic counters to be reset to zero, and cause the System Up Time
timer to reset to zero. Also, event log messages are erased, and the IP address
may be changed if you are using DHCP.

Checking the Access Point's LEDs

The self test passes if the Power LED on the front of the access point stops
blinking after approximately 50 seconds. If this LED continues blinking longer
than 60 seconds or goes off, there may be a problem with the access point.
See "Diagnosing with the LEDs" on page 4-3 for information on interpreting
the LED patterns.

Checking Event Messages

Useful diagnostic messages may be displayed on the console screen when the
access point is reset. As described in chapter 2 under step 7, "Connect a
console to the access point," connect a PC running a VT-100 terminal emulator
program or a standard VT-100 terminal to the access point's Console Port and
configure it with the terminal communication settings shown on page 2-11.
4-6
Unplug and plug in the power cord (power-cycling).
Press the Reset button on the back of the access point for just a second.
If you are attached to the console port, you will see that the access point
starts the power-on self test.