@Rod_Yorks Thanks so much for your advice. It took me a while to try it out, but I did exactly what you suggested and it now works very well. I will need to buy two more boxes to cover the whole...

@Alexandre. Thank you so much for your really full reply. I'll try as you suggest tomorrow and report back. Are you suggesting that Mesh is being over-hyped in the marketing blurb? Thanks.

I have a 400mbps lightstream fibre to the home conection from KCOM. At the router the speed is fantastic but because it's a large barn conversion with thick walls the speed drops to c.10% in other...