One of the extensions had been extended by a foot and the quality of cable was poor. I have replaced this and was connected at 40/10, although this dropped over night to 38/8.5. The only problem i have now is when connected by ethernet i get the max speed (35/7), but when using wifi is runs at 15/7. I will have to work out what is causing the interference, as it is next to my sky box, lamp etc. Another job for this evening!!
Sky Fibre Unlimited