Troubleshooting the Network Connection
Troubleshooting the Network Connection
If you encounter problems with the NIC or connecting to the network, check the table
below for troubleshooting tips.
CAUTION: Before inserting or removing the NIC from the PC, turn the PC power
off and unplug the power cord.
TipDescription
Check the NIC installationOn a Windows 98, 95, or NT 4.0 PC, make sure that you have run the preinstallation program, as
described in "Running the Preinstallation Program for Windows 95/98" on page 10. This program must
be run before installing the NIC in a PC with one of these operating systems.
Make sure that the NIC is installed correctly in a PCI slot. Check for specific hardware problems, such as
broken traces or loose or broken solder connections.
Check the network Inspect all cables and connections. Make sure that the cable complies with length and rating
connectionspecifications described in "Connecting the NIC to the Network" on page 14.
Check your PC BIOSMake sure that you are running the latest BIOS for your PC. If your BIOS has not been upgraded in the
previous 12 months, consult your PC manufacturer to obtain the current version of your BIOS software.
Run the NIC diagnostic testsRun the NIC and Network Tests, as described in ORunning the NIC Diagnostics Tests� on page 47.
If the tests fail, replace the NIC with a known working NIC and run the tests again, using the same
configuration settings as those used on the failed NIC. If the working NIC passes all tests, the original
NIC is probably defective. For information on product repair, see OTechnical Support� in Appendix E.
Run the 3Com Connection Install the 3Com Connection Assistant and run the self-service option. This option analyzes your NIC and
Assistant self-service.system, and guides you through troubleshooting steps to help resolve the problem.
Download the latest Download and install the latest NIC driver from:
NIC driverhttp://www.3com.com
Run the Undo Broken The Undo Broken Installation and Uninstall program is located on the EtherCD. See OCleaning Up a
Installation and Uninstall Failed Installation� on page 39 for instructions.
program
Check the 3Com support Review the known problems and solutions found in the following areas:
databases3Com Knowledgebase
3Com NIC Help system
Release Notes and Frequently Asked Questions
See OAccessing 3Com Support Databases� on page 38 for instructions on using these databases.
Troubleshooting Remote Wake-Up
If your PC does not boot in response to a Remote Wake-Up event, perform these
troubleshooting steps:
1 Make sure that the PC meets the Remote Wake-Up requirements listed in Chapter 1.
2 Make sure that you are using the latest driver for the NIC.
This driver is shipped with the NIC on the EtherCD. It can also be downloaded from:
http://www.3com.com
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