The paired unit is connected to another router. At the moment I've got a 30m cable connecting both routers (had to give up using powerline adapters!). Did a bit of reading last night and changed channels and other settings on the 'paired router' and all seems to be fine...just got to try it with...
I've got a router with a short cable connected to a TP-Link AV 600 Powerline Adapter, which is plugged into the wall.
When the Powerline Adapter is plugged in, the wifi speed from the router drops to zero. As soon as I turn the Powerline Adapter off, the wifi speed goes back to normal.
I've...