Depending on your current equipment, you may need to expand your existing LAN to accommodate additional devices. Wired routers typically have a fixed number of Ethernet ports you can connect devices to. If you need to connect additional devices beyond this, you may need to add a switch, which works similar to a telephone splitter, in that it allows you to take a single Ethernet line and expand it to several more lines. If you want to add a wired connection where there are no existing cables and drilling holes isn’t an option, you can use powerline adapters, which extend a wired connection using your home’s electrical wiring.