3Com ETHERLINK III LAN PC CARD User Manual page 60

Specifically, check the TimerCriticalSection parameter in the
Windows SYSTEM.INI file. It may be necessary to set it. Make
sure that the Network Driver Optimization mode is set to
Windows on the Configuration Information screen described
in Chapter 5. Refer to the Microsoft Windows documentation
for more information.
10 If you experience problems that occur only when using
the AutoLink program, display the AutoLink.Log file. Type
the following:
C:\ Type AutoLink.Log | More
The AutoLink.Log file contains a log of the events that
occurred during the AutoLink installation and configuration
process.
11 To run the Diagnostic Program, you must bypass loading
the network drivers. Reboot the PC and press [F5] (if
running DOS 6.0 or later on your PC), or boot from a DOS
diskette to avoid loading the drivers.
For additional technical support information, see Appendix C.
Troubleshooting Tips 6-9