Hi all, after messing around for so long I have gone another way just to prove a point.
I have removed Avast! and installed AVG.
I have not removed Spybot as I have been using that sw for many years and has spybot served me well.
Anyway with AVG I can stream Netflix, sky, iplayer etc so this has always been an Avast issue.
I shall stick with AVG for now until I get a sensible solution to this issue.
Don't get me wrong Avast has served me well but in this case the new version on w8.1 does not work for me.
What I find frustrating is the lack of support from avast themselves as if they could not care less.
Many Thanks anyway.
Frank