Bought a new build, biggest regret ever that I didn't get network cables installed during the build process! So I'm looking for guidance as to the best way to get the BT FTTP 300mb (which works perfectly when you're connected to the router, or nearby with wifi) to the office (which is upstairs, on the other side of the house). I bought some TP link cheap power lines, and get about 70mbps in the office. I bought a 802.11ac wifi card and with an aerial extension cable (so it's not behind the case against the wall), it hits about 100mbps. But I'd really like to achieve closer to the 300! I've read about the BT Complete Wifi disks, Google Wifi, Devolo Magic 2, Netgear Orbi, Plume etc. Other than destroyed the lovely fresh new walls, drilling countless joists and really upsetting the missus, does anyone have any experience or advice?