I'm trying to use Access Restriction to block all communications/ports between two specific devices on the same LAN. I want to block Device A from communicating with Device B while still allowing Device A to talk to the rest of the LAN. I have tried doing this several ways but it is not working. Can someone tell me exactly what needs to be set... a screenshot would be highly appreciated too! In case you are interested... Device A is a MiCasaVerde Vera 3 Device B is an Onkyo receiver with ethernet The issue I'm having is the Vera is responding to DHCP and we think uPnP communications from the Onkyo. The Vera is somehow sending back something causing the Onkyo's networking to stop working completely. We can see in packet traces if we do not block the DHCP the Onkyo never gets a response. It we block the Vera the DHCP completes fine... but even then, if we only block port 67, the Onkyo gets an IP address but its web server never responds. Since the two devices do not need to communicate for any reason I'd like to simply block all communications. I know it sounds strange but several Vera/Onkyo users of several different models have confirmed this issue. A few users are subnetting the Vera but it seems to me using Access Restriction might be easier to setup & manage? thx in advance!