@JawnTheZoz Assuming you are talking about the TL-PA9020 KIT. You would have one of the adapters wired to your router. You can still use the second port on that to receive a internet connection. The second adapter can have two devices wired to it. The two powerline adapters are just relay devices, they do not do any routing or give any IP addresses so if both do not work, either the adapters are not talking to each other or the Ethernet cable from the router is not providing a internet connection.