He is the scenario. Last November I had an hr24 and two h25 receivers installed with whole home setup. Everything worked fine until last Sunday when suddenly my receivers were no longer getting an ip address from my router. Instead it was getting a 169.x.x.x ip address and had no Internet access. The light on the deca box also confirmed it had no network access. The only way I could get the deca box to get network access and get the receivers on my network was to disable the router firewall. After I disabled the firewall the deca box connected and all my receivers were on my network. I then enabled the firewall again and I have had no problems. Directv has not been able to tell my why their deca box suddenly had a problem with my firewall and why it wasn't able to get an IP address from my router until it had Internet access. Can anyone shed some light on this? I want to understand what their hardware is requiring on my network.