Solving Network Problems - HP xw4100 Service And Technical Reference Manual

system diagnostics and troubleshooting
solving hardware installation problems (continued)
problem
Power LED flashes Red five
times, once every second,
followed by a two second
pause, and the workstation
beeps five times.
Power LED flashes Red six
times, once every second,
followed by a two second
pause, and the workstation
beeps six times.

5.6.11 solving network problems

These guidelines do not discuss the process of debugging the network cabling.
solving network problems
problem
Wake-on-LAN feature is
not functioning.
Network driver does
not detect network
controller.
Network status link light
does not turn on or it
never flashes.
NOTE: The
network status
light should flash
when there is
network activity.
5–36
cause
Memory is installed
incorrectly or is bad.
Video card is not seated
properly or is bad, or
system board is bad.
cause
Wake-on-LAN is not
enabled.
Network controller is
disabled.
Incorrect network driver.
No active network is
detected.
Network controller is not
set up properly.
Network driver is not
properly loaded.
System cannot autosense
the network.
hp workstation xw4100 service and technical reference guide
solution
1. Reseat DIMMs.
2. Replace DIMMs one at a time to
isolate the faulty module.
3. Replace third-party memory with
HP memory.
4. Replace the system board.
For systems with a graphics card:
1. Reseat the graphics card. Power
on the system.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated graphics,
replace the system board.
solution
Use the Network control application
to enable Wake-on-LAN.
Run Computer Setup and enable
network controller.
Check the network controller
documentation for the correct driver
or obtain the latest driver from the
manufacturer's Web site.
Check cabling and network
equipment for proper connection.
Use the Network control application
to verify that the device is working
properly.
Reinstall network drivers.
Disable auto-sensing capabilities and
force the system into the correct
operating mode.