I recently tried to install a SA 540. The link status keeps going to down. I have a 10 meg full-duplex line frm my ISP and called them and they said to set the port speed to that, otherwise you will see packet droping and it won't register as connected. I went to adjust the port speed to 10 but it would only let me set it to 100 or 1000. When I set the speed to auto is stays up for a maximum of 3 minutes before disconecting. The connection is solid when connected to our previous firewall. Is this something that can be addressed? Is there a work a round? I'm sure I'm not the only one with a problem like this.