Default Wireless issues anyone?

I've been using my Z2 for about six weeks now and on the whole I've been very, very pleased. However, recently I have noticed that when turning it on it occasionally doesn't wake up and stays resolutely black. It doesn't hang - more it doesn't respond to the power switch or the screen.

Another issue I have is one where the wifi goes into a sort of inbetween state where it isn't on and it isn't off and won't turn on or off via settings. This clears after a reboot thankfully but it is annoying.

Can anyone shed any light on these issues at all? I'm running 17.1.A.2.55 on EE in the UK.

Sent from my Xperia 2 while my back was turned.
Current:
Sony Xperia Z2 running Stock kitkat
Asus Transformer TF101 running KatKiss (KitKat 4.4)

Previous:
Sony Xperia S | HTC HD2 | Desire (Drowned... ) | Universal(O2 Exec) WM6.1(with Sandisk 8 GB SDHC)
Wizard (O2 mini-S) WM6.1 | Blue Angel (O2 xda II) WM2003SE | Sony Ericsson K800i - my trusty 'thickphone'

My blog - Making the 'Net work / Follow me on Twitter - @savcom / Tried DropBox? A 2G Account is free