Ok, well, first up, there's nothing inherently wrong with using the switch, typically the issue your seeing results from a mismatch in the speed and duplex settings on the switch. All my experience is with Cisco technology (it's what I do for work), so I can't give you exact commands or the like, but there should in the switch configuration commands for both port speed and duplex settings. Typically these default to auto-negotiation which often has some troubles.