3Com EtherLink III User Manual page 44

C
5 -8
hapter
4 If you are running the Group 2 test (only on the 3C509B
coax or 3C509B-COMBO adapter), make sure that the
loopback plug is securely attached to the adapter's BNC
connector and that the adapter is attached to a properly
cabled nonproduction network.
If this test fails, try another loopback plug.
5 If you are running the Group 3 test, make sure that the
adapter is connected to a properly cabled and inactive
network and that an echo server is set up on the network.
6 Make sure that the settings for the adapter's options are
not the same settings used in the system or on any other
adapter boards installed in the computer.
If you need help, select Configuration/Diagnstics/
Troubleshooting on the EtherDisk diskette main menu.
7 Install the adapter in another slot and run the diagnostic
tests again.
The original slot may be defective.
8 Replace the failed adapter with a working adapter and run
the diagnostic tests again.
Use the same option settings as those used on the failed
adapter.
If the working adapter passes all tests, the original adapter is
probably defective. Refer to Appendix B, "Technical Support.''
9 Make sure that if you have an ISA computer, the ISA adapter
has been configured to work in an ISA computer.
Refer to the section "Reconfiguring the Adapter for an ISA
Computer" in Chapter 3.
10 Install the adapter in another functioning computer and
run the tests again.
Your computer may be defective. If the adapter passes the
tests in the second computer, contact the reseller or
manufacturer of the original computer.
5: P T
erforming roubleshooting and
D T
iagnostic ests