NEC Express5800/120Mc2 series, User Manual

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Problem Solving 5-13
Problems with the Network
Diagnostics pass, but the connection fails:
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Make sure the network cable is securely attached.
The controller stopped working when an add-in adapter was installed:
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Make sure the cable is connected to the port from the onboard network controller.
!
Make sure the other adapter supports shared interrupts. Also, make sure your
operating system supports shared interrupts; OS/2 does not.
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Try reseating the add-in adapter.
The add-in adapter stopped working without apparent cause.
!
Try reseating the adapter first; then try a different slot if necessary.
!
The network driver files may be corrupt or deleted. Delete and then reinstall the
drivers.
!
Run the diagnostics.