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C
HAPTER
6: T
ROUBLESHOOTING
THE
NIC
Viewing the NIC LEDs in the Diagnostics Program
To view the LEDs in the 3Com NIC Diagnostics program:
1 Make sure that the NIC, the network driver, and the
3Com NIC Diagnostics program are installed.
2 Open the Windows Start menu.
3 Select Programs, and then 3Com NIC Utilities.
4 Click 3Com NIC Doctor.
The 3Com NIC Diagnostics General screen appears and
displays following LEDs:
Link
—lights if there is a valid connection between the NIC
and the network.
Transmit
—lights if the NIC is transmitting information.
Receive
—lights if the NIC is receiving information.
Duplex
—indicates if the NIC is transmitting data across the
network in half-duplex mode (half the LED lights), or in
full-duplex mode (the entire LED lights).
Accessing the 3Com Knowledgebase
To access a database of technical information that can
help you diagnose and solve NIC installation, configuration,
and upgrade problems, go to:
http://knowledgebase.3com.com
Accessing the 3Com NIC Help System
To access the 3Com NIC Help system:
1 Make sure that the NIC, its driver, and the
3Com NIC Diagnostics program are installed.
2 Open the Windows Start menu.
3 Select Programs, and then 3Com NIC Utilities.
4 Select 3Com NIC Doctor Help.
The main Help screen appears.
5 Click Help Topics to display a list of Help topics or click
Find to search for a Help topic.