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:
1Double-click the 3Com icon in the Windows system tray.
A warning message appears.
