IBM 21Y Security Camera User Manual

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
100 Mbps.
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
definite symptoms.
Table 1. Ethernet troubleshooting chart
Suggested Action
The server
when loading
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
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 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.