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Forum Discussion
Connecting R7000 with Xfinity gateway in bridge mode - use WAN or LAN?
This seems to be a common problem but I still can't get the answer. I have an Xfinity XB3 wireless gateway (Cisco model #DPC3941T) and a Netgear R7000 Nighthawk wireless router. I've set the Xfinit...
No, leave the setting to get the Internet IP address dynamically from the ISP. You should confirm that the IP address listed on that page is a public IP address. In other words, it should NOT be 192.168.1.X, 10.X.X.X, or 172.16.X.X. If it IS one those addresses, then the Xfinity gateway is not in bridge mode. Otherwise, the R7000 should have received a public IP address.
The subnet that you want to change is under ADVANCED > Setup > LAN Setup. Since the Xfinity gateway is using 10.0.0.1/255.255.255.0, you can change the R7000's LAN IP address to 192.168.1.1 and subnet mask to 255.255.255.0.
Hmm, so I did what you said and the R7000 LAN port already has the IP address and subnet mask that you suggested. Which got me to thinking that maybe it's not the router or gateway that's messed up, but rather it's me. Full disclosure -- what I left out was that I am trying to connect a Netgear Powerline adaptor to the LAN port of the router, which is used to allow web control for my home alarm system. So I tried to connect my laptop to the LAN port of my R7000 router, and...lo and behold it connects to the Internet fine.
So now my question becomes why does the Powerline adaptor not work when connected to the LAN port of the router (the led light for the LAN port is a solid orange for the Powerline adaptor as opposed to solid white). It worked fine before I got the Xfinity wireless gateway when I was using my R7000 router with a regular cable modem. I know less about powerline adaptors than about routers and modems (which is not a lot to begin with) so I'm just throwing this out there without much hope of an answer - maybe I need to go to a different forum?
TheEther - thanks for your help anyways.