first problem liknsys. still its better than d-link take it back and get a netgear. Ok ok seriously. 1 Make sure you have cat 5 cables the biggest problem with network break downs are the cables. 2 forget this half duplex crap the hub should auto sense no matter what and the cards if they are 10/100 i would bet will do the same so they are testing communications with the hub and they probably are having cross talk on the cat 3 cables i am betting you are running. Worst case force full duplex at 100mbs and try pinging see what your replys are should be less than 10ms on lan if high pings i bet you got a cable problem but on 10mbs the cables dont break down. or you could have a bad cable end and at 100mbs your get end cross talk becuase pairs are unwound to much if they are not premade cables IE your cousin made them X

[This message has been edited by x_789 (edited January 23, 2001).]

[This message has been edited by x_789 (edited January 23, 2001).]