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18 Netfinity 3500-M20 – Type 8657 Models 21Y, 22Y, 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 speed is
• Make sure that you are using the correct device drivers,
supplied with the server.
• Check for operating system-specific causes for the
• Make sure that the device drivers on the client and
server are using the same protocol.
• Test the Ethernet controller.
How you test the Ethernet controller depends on which
operating system you are using (see the Ethernet con-
troller device driver README file).
Ethernet controller troubleshooting chart
You can use the following troubleshooting chart to find solu-
tions to 10/100 Mbps Ethernet controller problems that have
Table 1. Ethernet troubleshooting chart
The PCI BIOS interrupt settings are
Check the following:
• Determine if the interrupt (IRQ)
setting assigned to the Ethernet
controller is also assigned to another
device in the Configuration/Setup
Although interrupt sharing is allowed
for PCI devices, some devices do not
function well when they share an
interrupt with a dissimilar PCI device.
Try changing the IRQ assigned to the
Ethernet controller or the other
device. For example, for NetWare
Versions 3 and 4 it is recommended
that disk controllers not share
interrupts with LAN controllers.
• Make sure that you are using the
most recent device driver available
from the World Wide Web.
• Run the network diagnostic program.