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Forum Discussion
timbo8391
Jul 19, 2020Aspirant
AX12 Won't connect to Comcast Modem
I've got a Comcast Arris cable modem and configured it for bridge mode. I connect it to my AX12 router and I get an internet light on the router so everything looks good. However, I can't connect to the internet. I've rebooted both modem and router several times with no change. If I use the Comcast router everything works but I'd rather use my AX12. The AX12 also is working since I have used it with another modem. Does anyone know what might be going on?
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- RajaDajaLuminary
Did you have the modem provisioned?
- RajaDajaLuminary
Whoops! Sorry I see you mentioned using it already.
- timbo8391AspirantYes the modem is provisioned and the built in router works. When I switch to bridge mode and connect to my AX12 I get an internet light but can’t connect to the internet.
- RajaDajaLuminary
After you've made your connection, did you power cycle everything?
Starting with the bridged device: 1. unplug from power source the turn off
2. unplug your Netgear Router
3. Turn off Computer
Turn on your Network: 1. Plug in bridged device(modem) let it come fully online.
2. Plug in your router, turn it on
- michail71Apprentice
I have the same setup, XB6 modem and AX12. I was not able to get bridge mode working either. The router never got a dynamic IP assignment. Comcast support even tried helping out. They were very helpful but after failing to get it to work, Comcast gave me an account credit.
However, I'm getting much better overall WiFi out of the Comcast XB6 than I am with the AX12. So I'm debating a return. I have both APs running now. Which I need for my 802.11ac clients to even get a stable connection.
We shouldn't have to stuggle so hard getting a $500 router to work! It should be amazing out of the box.
- avtellaProdigy
This sounds more like an issue with the Comcast XB6 firmware, not so much an RAX120 issue....
- RajaDajaLuminarySorry to here that. Have you actually used the AX12? To imply that the Xfinity gateways wi-fi is better without actually setting up your AX12 is a little bias. Well you could save over a hundred dollars a year by purchasing your own modem......
- michail71Apprentice
Yes, not to hijack OPs thread, but we have a similar setup :), https://community.netgear.com/t5/Nighthawk-Routers-with-WiFi-6-AX/Terrible-WiFi-with-RAX12-after-switching-off-Xfinity-AP/m-p/1948580#M10786
- timbo8391Aspirant
I think this is the problem I am having. I get everything connected up, get an internet light on the router but I don't think I get an IP. I have no idea why this is happening. I had the AX12 working just fine with a different modem. Maybe I need to switch back to my old modem and get rid of the Comcast one. I'm not even able to see the router when I try to browse to it. Comcast sees nothing wrong when they check.
- michail71Apprentice
The problem could be on either end but it's hard to tell. I suspect Comcast firmware is the issue. We would need an engineer from either side to debug. All I can tell is that the asignments are not being negotiated between them.