Modem isn't sending signals to more than one device.
Modem isn't sending signals to more than one device.
A few days back I relocated into a new home. The property features Ethernet cabling, which the prior occupants had with AT&T, while I now use Spectrum. Someone installed the connection myself. After setting it up, I connected my laptop via the wall port and received no signal. I considered the cable might be faulty, so I tried another port in the house for my smart TV, but that also failed. Remembering the router is functioning properly, I suspected a switch issue. At Best Buy I purchased a replacement switch, configured it at home, yet everything remained unresponsive. Now I’m puzzled because my router works fine, but adding more devices consistently causes problems, suggesting a possible device limitation on modems.
Technically speaking a standard cable modem can only have ONE device connected to it at a time. As it will only provide you wth ONE public IPv4 address. You connect a router to the modem so you can share that one IP address wtih all the machines in your home. Specturm is not like the other ISP's, then tend to issue standard cable modems not the Modem/Router Combos everyone else issues. So you need to ensure that you have a router between that spectrum modem and your devices. Could you also provide model numbers of all your networking gear. That will also help us figure things out.
Are you using a router supplied by Spectrum and just transferred it from your previous home to your current one? What devices are you linking to the router? Did they provide a coaxial or Ethernet connection, or are you connecting it to another device they offered? How did you verify the router is functioning properly? It’s possible there are extra settings on the router that need adjustment by your Internet Service Provider. They might have set up manual options that won’t work with your new configuration. Unless a static IP address was assigned by the ISP, it’s likely your new network range (possibly a /29) has changed.