@Ratpaladin Hi, It would be two upstairs one downstairs. Below is the section from the user manual that deals with this topic.

@ArteffKods Hi, I am not sure about your particular router model, but most TP-Link routers have "Release" / "Renew" buttons in the "Advanced" -> "Network" -> "Internet" settings menu.

@Dreamurr Hi, You can find out which TP-Link router models support WDS by going to TP-Link's product website for Wi-Fi routers and set a filter for the feature in question....

@KB24 Hi, What did you unplug? The Powerline adapters from the wall sockets or the Ethernet cables or both? Make sure the all ends of the Ethernet cables are plugged into something and all devices...

@Pras902 Despite the UK not being part of the EU anymore, I am pretty sure TP-Link wireless devices made for the UK market follow the same rules. I am afraid there will be no straight solution for...

@Froggy650 The only "solution", if you want to call it that, would be to limit the USB disk to USB 2.0 mode. I have seen routers that have an option in the settings menu of the router to limit the...