Network issue with Yammy 5100

I am experiencing a problem with my Yammy 5100 which is only a few months old.
It did it out of the box but now it is getting worse.
It is hard wired to the router and I am an IT guy so I know all IP set up is right, checking Network Setup on it also confirms this.
What it does is when you switch to NET Radio listening it just sits there displaying "Please wait".
Or when you select Airplay, displays "Airplay" as selected input and no sound comes out (at this stage iPad shows 5100 as connected)
If you wait it just sits there as long as you can wait nothing happens.
Only way it works in both case is if you turn the 5100 on & off a few times sometimes more.
Anybody has heard/experienced anything like this.
I just want to do a bit of brain storming before I lodge a warranty claim.