You don't need a router. If you set the subnet mask on all of the PCs to be 255.255.0.0, then they should all be able to ping each other. Basically, opening up the subnet mask puts all of the PCs on ...

If your Wi-Fi often feels like it's stuck in traffic — too many devices, too many users, and not enough bandwidth — you've probably wondered: Is it possible to have two different Wi‑Fi networks in a ...