SMC Networks SMC2804WBR V.2 - Manual (Page 83)

Troubleshooting
81
2. Type ipconfig/release.
3. Then type ipconfig/renew.
D. The 10/100 LED does not light after a connection is made
1. Check that the host computer and the Wireless Barricade™
are both powered on.
2. Be sure the network cable is connected to both devices.
3. Verify that Category 5 cable is used if you are operating at
100 Mbps, and that the length of any cable does not exceed
100 m (328 ft).
4. Check the network card connections.
5. The 10BASE-T/100BASE-TX port, network card, or cable
may be defective.