3Com 3C319 - Manual (Page 87)

Troubleshooting Tips 9-9
10 Try a different lobe cable.
11 Verify that you have the latest software drivers
from the network vendor for the network operating
system (NOS) that you are using.
Press the [F1] key for Help information at any time during
operation of the Configuration and Diagnostic Program.
Appendix B , “Technical Support ,” contains sources of
online information. In addition, the SYSRESRC.TXT file
in the \HELP subdirectory contains information about
commonly used interrupts and I/O base addresses.