Here's an interesting problem. I just installed a Whole Home system with an HR-34 and HR-20; with a SWIM, DECA, with a DECA adapter for the HR-20. Everything works fine. Only curiosity so far is that an extra IP address is now being requested from my DHCP server. It's from MAC Address: 00:11:25:83:58:19 (FWIW, IBM is the manufacturer.). I can identify every device on the network, traced every cable, and nothing else is new. This device must be part of the new installation. So what is it? I see all my other devices on my LAN as they were before, I see the HR-20 and HR-34. I haven't found any connected devices with that MAC address. None of my devices are spoofing that address. Anybody have a clue? Does something in the DECA set up request an additional address? Regards, Bill Oh, And no - a neighbor didn't sneak in and connect an Ethernet cable to "borrow" my high speed service.