I have an empeg which I bought last year and am just getting around to installing. When I connect an ethernet cable, the link light on the empeg comes up, but the link light on the switch doesn't. I've tried a Linksys 10/100 10-port switch, a Buffalo 10/100 switch (actually a wireless router), and a D-Link 1000/100/10 switch, with the same results. I've also swapped cables.

Does anyone have an opinion on if it's worth it to look for a 10mbit hub or switch on ebay, or does the lack of a corresponding link light more likely indicate that something's physically wrong with the port?