If you ve drilled through the floor to.
Connect ethernet cable to wall.
Most units have built in splitter to pass through coax to a tv box or cable modem.
Connecting the pc to the wall port needs just a cable assuming it s a rj45 port.
No issues with interference etc.
If i plug a computer into a phone jack my computer will be damaged when i receive the next phone call.
Setup is even easier than powerline just screw in the coax cable plug in ethernet and power on.
Connecting the wall port to internet is a different issue that we can t solve for you.
The internet port may be labeled internet wan uplink or wlan.
Just plug one into your wall in the room with your router connect it to your router with an ethernet cable and plug the other one in the wall next to your far away devices.
Connect the cable dsl or fiber optic line from the wall to your modem step 2 connect your modem to the router.
Drill a hole in the floor or ceiling behind your jack outlet if necessary.
Depending on where your internet equipment.
Your gateway may vary from the image shown.
Step 1 connect your modem to the internet cord.
Run your ethernet cable from your networking hardware to the jack outlet.
Solution connect one end of the coaxial cable to the cable wall outlet.
Simply connect an ethernet cable from the ethernet port on your computer to any available ethernet port on the back of your gateway.
Ethernet ports are the yellow ports found on the back of your at t gateway.
Running cable to the jack 1.
You can also screw the wall plates into.
Connect the other end of the cable to the modem.
My house uses ethernet wiring for both internet cables and phone lines.
The ring signal is typically 20 volts which will fry the ethernet circuits.
If you are using a separate wireless router use an ethernet cable to connect from the modem to the internet port on your router.
Secure the mounting bracket.
A lot of modern modems act as a wireless router.