I think I have solved this issue - with a bit of trial and error I resolved this issue - it was a nas drive plugged into a switch on my network causing the issue for some reason - I've removed that...

#SOLVED#!! Model : Hardware Version : Firmware Version : ISP : I'm using Sky Broadband Hub - wifi and interner from this works fine. I've got a powerline setup starting with a WPA8630 connected to my...