if the link led is not lit, try the following:

    1 make sure the internet firewall is powered on.

    2 make sure the rj-45 connections are secure. gently moving the cable back and forth should not make the link led turn on and off.

    3 make sure the wiring follows the 10base-t specification. see “pinout diagrams” on page 131 for more information.

    4 try replacing the cable with a known good cable.

    5 is it the correct cable? try using a standard 10base-t or crossover cable instead. if the problem is on the lan or dmz port, try setting the uplink/normal switch to the alternative position.