Hardware Diagnostic Tests; Testing The Access Point By Resetting It; Checking The Access Point's Leds; Checking Console 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
Power cycling the access point and pressing the Reset button both cause the
access point to perform its power-on self test, which almost always will
resolve 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.

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 Console 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 to run at 9600 baud, and with the other terminal communication
settings shown on page 2-11. Then, when you reset the access point, note the
messages that are displayed. Additionally, you can check the access point's
event log, which can be accessed from the console using the show logging
commands.
4-6
Unplug and plug in the power cord (power cycling)
Press the Reset button on the back of the switch