ProCurve 10ag, Installation And Configuration Manual, Page: 79 / 132

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6
Troubleshooting
This chapter describes how to troubleshoot your ProCurve Wireless
Access Point 10ag. Note that this document describes troubleshooting mostly
from a hardware perspective.
This chapter describes the following:
■ Basic Troubleshooting Tips
■
Diagnosing with the LEDs
■ Hardware Diagnostic Tests
■
Restoring Factory Default Configuration
■ HP Customer Support Services
Basic Troubleshooting Tips
Most problems are caused by the following situations. Check for these items
first when starting your troubleshooting:
■ Connecting to devices that have a fixed full-duplex configuration.
By default, the RJ-45 port uses auto-negotiation to determine the duplex
mode. That is, when connecting to attached devices, the access point will
operate in one of two ways to determine the link speed and the commu-
nication mode (half duplex or full duplex):
• If the connected device is also configured to use auto-negotiation, the
access point will automatically negotiate both link speed and commu-
nication mode.
• If the connected device has a fixed configuration, for example
100 Mbps, at half or full duplex, the access point will automatically
sense the link speed, but will default to a communication mode of
half
duplex.
Because the Access Point 10ag behaves in this way (in compliance with
the IEEE 802.3-2005 standard) , if a device connected to the access point
has a fixed configuration at full duplex, the device will not connect
correctly to the access point. The result will be high error rates and very
inefficient communications between the access point and the device.