Yesterday I tried to update my Xfinity gateway to the newest model that has DOCSIS 3.1. I think it's the XB6 model. I hooked it up, enabled bridge mode on it, and power cycled the AE. When it came back online, my internal network was working fine (security cameras, printer, Roomba etc..) but I couldn't get to any outside websites. Upon closer look, I noticed that my AE was still showing the old IP address from the older Xfinity gateway. I would assume it should be getting a new IP from a new Modem/Gateway device. I tried to Renew DHCP in the AP utility app and it wouldn't work. I powered cycled things numerous times and even spoke with Comcast tier-2 networking support and we just couldn't get the AE to get an IP from the new gateway. I ended up hooking back up the older gateway and it worked just fine; as it used the same IP it had before. Not sure if the Gateway or the AE is to blame. Anyone have any thoughts?