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8 Running NIC Diagnostics
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Running the NIC Test
Run the NIC Test to check the physical components, connectors, and circuitry on the NIC.
1 On the Diagnostics screen, click Run NIC Test.
The NIC Test screen appears.
2 Click Perform NIC Test.
While the test is running, a progress bar indicates test progress.
If the test passes, the NIC is functioning correctly.
If the test fails, a message indicates the error type. Click Help in the error message
screen to obtain more information.
3 Click Close.
Viewing the NIC LEDs in the 3Com Diagnostics Program
To view the LEDs in the 3Com NIC Diagnostics program:
1 Make sure 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 the following LEDs:
100 LNK — Lights if there is a valid connection between the NIC and the network.
ACT LNK — Lights if the NIC is transmitting or receiving information.
Viewing Network Statistics
To view statistical information about the network:
1 Make sure 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.
5 Click the Statistics tab.
The Statistics screen appears, providing numerical data for a variety of network
events, such as: packets transmitted, bytes transmitted, late collisions, and so forth.
The information is updated by the NIC driver every five seconds.
For a description of each statistic, click the question mark (?) in the upper right corner
of the screen, drag it over a statistic and click once. A pop-up box appears, displaying
information about the statistic.
6 Click OK to exit the diagnostics program. To go to another diagnostics screen, click
the appropriate tab.
NOTE: For instructions on interpreting the NIC LEDs, see “Interpreting the NIC
LEDs” on page 55.