NEC PowerMate Professional 9000E Series User Manual page 184

The Activity LED doesn't light:
T
Make sure you've loaded the correct network drivers.
T
Network may be idle. Try accessing a network drive.
The controller stopped working when an add-in adapter was
installed:
T
Make sure the cable is connected to the port from the
onboard network controller.
T
Make sure your PCI BIOS is current. Try the "PCI
Installation Tips" in the following section.
T
Make sure the other adapter supports shared interrupts.
Also, make sure your operating system supports shared
interrupts; OS/2 does not.
T
Try reseating the add-in adapter.
The add-in adapter stopped working without apparent cause.
T
Try reseating the adapter first; then try a different slot if
necessary.
T
The network driver files may be corrupt or deleted. Delete
and then reinstall the drivers.
T
Run the diagnostics.
5-18 Solving System Problems