Hi all,

A few months ago we moved to a very old property with thick stone walls and initially connected my 3 M9s with CAT5 running all over the house, which was a rather unsightly trip hazard. Having sorted out the power requirements and cabled the fibre into the roof, a few weeks ago I moved the 3 Decos up into the loft space with two connected direct with CAT 5 and one connected via Powerline. Initially this worked well with wi-fi speeds generally from 150mbps to 220mbps throughout the house from my Wessex Internet service (speed test from the Deco shows 283/121mbps).

So all looked well until I had some electrical work carried out in the roof, which needed the power supply off for a few hours. Since then, despite multiple reboots, the wi-fi in much of the house is very patchy with performance changing constantly. It's quite good directly below the Decos, but moving just a few feet away on the ground floor speeds will drop like a stone and often lose connection entirely.

Nothing else has changed that I can see from when the performance was excellent through the house, so I'm a bit stumped! Any advice gladly received...