“I want to add wifi in my back room, can I just split the cable going to my finite cable box, creating an extra network?”
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No, this is a modem (with wifi and routing capabilities) and it uses the coax jack to communicate with your ISP. I imagine it would mess with your service if not completely shut it down. If you are just wanting to extend wifi range, get either just a Nighthawk wifi router (which is built into this modem, you just don't need the modem portion) or get a wifi range extender.
Sorry, there was a problem. Please try again later.There are better ways to do this. You can run Ethernet cable to the back room and put in a wifi access box or you could buy a wifi extender box to extend wifi to the back room. You might be able to get two modems to connect to your cable but you will have network problems that will vex you.
Sorry, there was a problem. Please try again later.It would be better to run an ethernet from your Netgear cable-modem to the back bedroom; then add a wireless modem and that will extend your existing network.
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