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Forum Discussion
Nighthawk CM1200 Port #1 Issue
I have a Nighthawk CM1200 Modem. Port 1- TV #1 Port 2 -TV #2 Port 3- Google Wifi Node Port 4- PS4 Everything works except for the TV in Port 1. If I unplug any other connection and put it into ...
You are aware that you really need a external router connected to the CM modem on port #1 right? The CM1200 does NOT have a built in router.
Air98force wrote:
I have a Nighthawk CM1200 Modem.
Port 1- TV #1
Port 2 -TV #2
Port 3- Google Wifi Node
Port 4- PS4
Everything works except for the TV in Port 1. If I unplug any other connection and put it into port 1, that will also not work. No link lights or anything. So I have 1 port connected to my wireless router, and 2 external devices connected. I've seen some people say you can only have 1 external device or something, but i currently have 3 working fine so I can't imagine that is the issue. Any thoughts? Thank you in advance.
What does not being a router have to do with one of the four ports not working? I have one Public IP address from the ISP. If I were to pull the IPs off of the 2 TVs, the PS4 and then Google Wifi, they would all have the same public IP. That is why my Google Wifi, PS4 and one of the TVs can all function when hardwired to the modem. What I am trying to figure out is why Port 1 doesn't work.
Disconnect all but one device connected to the LAN port 1 and power OFF the CM modem for 30 seconds then back on. Does the device work?
> [...] I've seen some people say you can only have 1 external device
> or something, but i currently have 3 working fine so I can't imagine
> that is the issue. [...]I can imagine it. What are the IP addresses of these devices when
you have all "3 working fine"?
> [...] What I am trying to figure out is why Port 1 doesn't work.What everyone else is trying to figure out is how you got multiple
devices to work with only a modem, and without a NAT router.