Start where your Sail Internet service enters your home, usually a wall jack, junction box, or network panel. Your main router should connect there. From that point, you have a few options:
If your home has Ethernet wiring to each room
Plug the cables that run to each room into your router’s Ethernet ports. If you need more ports than your router has, add a gigabit Ethernet switch next to the router: connect the router to the switch, then connect each room’s cable to the switch. Any device plugged into a wall jack in those rooms will then have a wired connection.
If a room isn’t pre-wired
If you use a mesh WiFi system, place one of its units in that room. Most mesh units have Ethernet ports, so you can plug a TV, gaming console, or computer directly into the nearby unit.