Technical data

Troubleshooting, Continued
Table C–6 (Continued) Network Problems
Symptom Possible Cause Corrective Action
Network switch
is not set
correctly.
If Ethernet is not being
used, move the network
switch to the left, toward
standard Ethernet.
Terminator is
missing from
network.
Determine if a ThinWire
cable was removed. If so,
replace the cable with a
terminator.
Cable connection
is loose.
Verify that all connections
on the Ethernet segment
are secure.
Power supply
failure.
Replace the power supply.
Lights 7, 4, 3,
and 0 on the
front of the
system are on.
The T-connector
is disconnected.
Ensure that the T-
connector is connected
to an operating ThinWire
Ethernet segment.
Cannot boot from
the network.
Local network
problem.
Problem is most likely
caused by the customer
server system or the
network.
Defective NI
interface.
Run diagnostics (TEST
NI command) with
terminators attached.
Replace faulty FRU if test
fails.
Continued on next page
C–11