IBM TotalStorage 300 Service Manual page 34

Table 5. Ethernet troubleshooting chart
Gigabit adapter problem
No Link or TX/RX Activity
Your engine cannot find the
Gigabit Ethernet SX adapter
Diagnostics pass but the
connection fails
Another adapter stopped
working after you installed
the Gigabit Ethernet SX
Adapter
The adapter stopped working
without apparent cause
LINK LED is not On
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IBM NAS 300 Service Guide
Suggested Action
If you cannot link to your switch, check the following:
1. Check the following LED lights on the adapter:
TX — On
The adapter is sending data
RX — On
The adapter is receiving data.
Link — On
The adapter is connected to a valid link partner and is receiving link
pulses.
Link — Off
Link is inoperative.
v Check all connections at the adapter and link partner
v Make sure the link partner is set to 1000 Mbps and full-duplex
v Ensure the required drivers are loaded
PRO — Programmable LED
Identifies the adapter by blinking. Use the Identify Adapter push-button in
INTEL PROSet II to control blinking.
2. Ensure that the cable is installed correctly. The network cable must be securely
attached at all connections. If the cable is attached but the problem persists, try a
different cable.
Check the following:
1. Verify that the adapter is seated firmly in the slot
2. Try a different Gigabit Ethernet SX adapter
Check the following:
Ensure the network cable is securely attached
Check the following:
1. Verify that the cable is connected to the Gigabit Ethernet SX Adapter and not to
another adapter.
2. Check for a resource conflict
3. Ensure both adapters are seated firmly in the slot
4. Check all cables
Check the following:
1. Try reseating the adapter
2. The network driver files might be damaged or deleted. Reinstall the drivers
3. Try a different Gigabit Ethernet SX Adapter
Check the following:
1. Ensure that you have loaded the adapter driver
2. Check all connections at the adapter and the buffered repeater or switch
3. Try another port on the buffered repeater or switch
4. Ensure that the buffered repeater or switch port is configured for 1000 Mbps and
full-duplex.
5. Try changing the auto-negotiation setting on the link partner, if possible