SMC Networks Ethernet ISA Network Cards User Manual page 29

Symptom
The PC is unable to log into the network.
Possible Causes
1. Bad cable connection.
2. Card not properly installed in computer slot.
3. Host PC's slot is defective.
4. IRQ conflict.
Suggestions
1. If you are using the RJ-45 connector, check the cabling for
loose connection or wrong pin assignment.
2. Check to be sure the card is properly seated in the
computer's slot; it may have been accidentally loosened.
3. Install the card in another PC, or install it in another slot. If
the problem is eliminated, then the original PC's slot is
defective. Contact your PC vendor for assistance.
4. If you are running Windows, use Microsoft diagnostics to
resolve IRQ conflicts.
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ROUBLESHOOTING
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