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Ethernet+Modem/Fax PC Card User’s Guide
A-2 Troubleshooting
Symptoms
1. Twisted-pair connection results in card failure.
2. Running Test Adapter results to External Loopback Test failure.
Possible Cause
Invalid twisted-pair link
Suggestions
1. Check the RJ-45 connection for loose cabling.
2. Check for wrong RJ-45 pin assignments.
Symptom
Ethernet PC Card failure; suddenly cannot log into the network.
Possible Causes
1. Bad cable connection
2. Ethernet PC Card not properly installed in PCMCIA slot
3. Host PC’s slot defective
4. Resource conflict
Suggestions
1. If you’re using the RJ-45 port on the card, check cabling for loose connection
or wrong pin assignment .
2. Check if the Card is properly inserted in the PCMCIA slot; it may have been
accidentally loosened.
3. Install the PC 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. Check if there is a resource conflict in your CONFIG.SYS file, I/O address or
IRQ settings.