IBM Et hernet controller troub lesho otin g c h a rt

18 Net finity 3500 -M20 – T ype 8657 Mod els 21 Y, 2 2Y, 31Y, 32Y ,
make sure that the hub and network are operating
and that the correct device drivers are loaded.
— The Ethernet Speed 100 Mbps light illuminates
when the Ethernet controller LAN spee d is
100 Mbps.
• Make sure that you are using the correct device drivers,
supplied with the s erver.
• Check for operating system-specific causes for the
problem.
• M ake sur e that the device drive rs on the client and
server are using the same protocol.
• Test the Ethernet controller.
How you test the Ethernet controlle r depends on which
operating system you are using (see the Ethernet con-
troller device driver README file).
Et hernet controller troub lesho otin g c h a rt
You c an use the fol lowing troubleshooting chart to find solu-
tions to 10/100 Mbps Ethernet controller problems that have
definite symptoms.
Tabl e 1. Ethernet troubleshooting chart
Ethernet
controller
problem
Suggested Action
The serv er
stop s
ru nn in g
when loading
device
drivers.
The PCI BIOS interrupt settings are
incorrect.
Check th e following:
• Det erm in e if the inte r ru pt ( IRQ )
setting assigned to the Ethernet
c ontroller is also assigned to another
device in the Configuration/Setup
Utility program.
Although interrupt sharing is allowed
for PCI devices, some devices do not
function well when they share an
interrupt with a dissimilar PCI devic e.
T r y ch an gi ng the I RQ a ssi gned t o the
Ethernet controller or t he other
de vice. For example, for NetWare
Vers ions 3 and 4 it is recommended
that disk controllers not share
interrupts with LAN controllers.
• Make sure that you are using the
m ost recent devi ce d river available
from th e World Wide Web.
• Run the network diagnostic program.