A related possibility is that the switch might be mishandling the auto-negotiation when connected directly to the 3com card. We have experienced communication problems due to auto-negotiation failures. Look at the negotiated media and duplex settings with vortex-diag. yes, I know you said that your trying to fix the speed. These units have a 'history'.
Be glad you do not have Cisco inline ! Cisco and 3com do not get along well. Email me off the list and I may be able to help you. Joop [EMAIL PROTECTED] > I have a 10Mbps link between two locations which is (supposedly) full > duplex and is presented as a 10BaseT port at either end. The routers > connected to each end have 3Com Vortex cards in them. In both cases, the > card connected to the 10Mbps link reports a constantly increasing number > in the "carrier" value in ifconfig. No other errors appear. The link > passes traffic but not perfectly. The link itself is not flooded.
