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Forum Discussion
Raishaun
Jan 02, 2022Tutor
RAX50 AX5400 no internet connection
My RAX50 just randomly lost internet connection. Internet light is solid red. Since this has happened I've fsctory reset countless times. I managed to find out the nighthawk app was preventing it from updating to the most current firmware; and have since manually updated it through the website. My isp is comcast, and my model is a CMS1200. Modem still lets things connect hardwired, but cannot hardwire anything through router. Everything connects wirelessly to the router but I get an error "connected with no internet." Tried using the setup wizard and get an error "unable to obtain ip address. Never have had an issue like this before. I've been told that this model may no longer be supported as well.
The cm1200 has 4x ethernet ports. But comcast only supports 1 device connected to it.
So try this. Power off the router and the modem. Disconnect the coax from the modem.
Wait 2 minutes.
Connect the coax back to the modem and power it on.
Wait 2 minutes.
Connect port 1 on the modem to the wan port on the router.
Power the router on.
Wait 2 minutes for it to fully boot.
Attempt setup/using the router.
Make sure to only have 1 device plugged into the cm1200.
9 Replies
- FURRYe38Guru - Experienced User
Please verify the ISP modem model information. CMS1200 doesn't appear to be valid. CM1200 by chance?
Netgear has set up a community forum specifically for the NightHawk RAX WiFi 6 Router products:
https://community.netgear.com/t5/Nighthawk-Routers-with-WiFi-6-AX/bd-p/en-home-routers-nighthawk-wifi-ax6
Please use this link to the main forum product list to review and choose where to make your posts.
https://community.netgear.com/t5/NETGEAR-Forum/ct-p/en-netgear
Thank you.- RaishaunTutor
Yes sorry it's a cm1200
FURRYe38 wrote:Please verify the ISP modem model information. CMS1200 doesn't appear to be valid. CM1200 by chance?
Netgear has set up a community forum specifically for the NightHawk RAX WiFi 6 Router products:
https://community.netgear.com/t5/Nighthawk-Routers-with-WiFi-6-AX/bd-p/en-home-routers-nighthawk-wifi-ax6
Please use this link to the main forum product list to review and choose where to make your posts.
https://community.netgear.com/t5/NETGEAR-Forum/ct-p/en-netgear
Thank you.
- plemansGuru - Experienced User
The cm1200 has 4x ethernet ports. But comcast only supports 1 device connected to it.
So try this. Power off the router and the modem. Disconnect the coax from the modem.
Wait 2 minutes.
Connect the coax back to the modem and power it on.
Wait 2 minutes.
Connect port 1 on the modem to the wan port on the router.
Power the router on.
Wait 2 minutes for it to fully boot.
Attempt setup/using the router.
Make sure to only have 1 device plugged into the cm1200.
- RaishaunTutorDUDE...... It worked, thank you so much! I don't understand why comcast chose to do that. That's a waste of 3 ports. Probably because it's not their equipment.
- plemansGuru - Experienced UserGlad it worked for you! It happens because Comcast wants people to pay extra for more than one public IP address.