Why does tethering no longer work after update on my Xperia Z2?

[AC Question]

I have updated my Sony Xperia Z2 to the new Android 5.0.2 yesterday and can no longer use my phone as a mobile wifi device, which I was able to do before.

 

[DLK1]

Did you go thru and set it all back up? It more that likely wiped your settings.