3-2
C
HAPTER
3: T
ROUBLESHOOTING
I
NSTALLATION
P
ROBLEMS
3Com DOS Diagnostic Program
Use the 3Com DOS diagnostic program to troubleshoot
problems or change configuration settings for a
3C900B NIC installed in a PC running DOS, Windows 3.x,
Windows for Workgroups, or Windows NT 3.51. For
information about running the 3Com DOS diagnostic
program, see the INSTRUCT.TXT file in the HELP directory
on
EtherDisk
diskette 1.
3Com NIC Diagnostics Program
This section describes how to use the 3Com NIC
Diagnostics program to run diagnostic tests on a
3C900B NIC installed in a PC running Windows 95 or
Windows NT 4.0. You can also use this program to change
NIC configuration settings after the NIC and the NIC
software are installed. To change NIC configuration
settings, see Chapter 4.
The 3Com NIC Diagnostics program is installed when you
install the network driver for the 3C900B NIC. The network
driver must be installed before you can run the 3Com NIC
Diagnostics program.
Running NIC Tests
Run the NIC tests to check the physical components,
connectors, and circuitry on the NIC. Make sure that the
NIC is installed and connected to the network (Chapter 1)
and the network driver is installed (Chapter 2) before
running NIC tests.
Follow these steps to start the 3Com NIC Diagnostics
program and run the NIC tests:
1 Double-click the 3Com icon in the Windows
system tray.
A warning message appears.