cortana not working

[Tkukucka]

Hi all,
I have not seen this posted anywhere else so here it goes. I have a Nokia Lumia 520 and I upgraded it to (I am a developer) wp 8.1 via developers preview. its been working fine till yesterday
when cortana kept telling me that the internet and here are not communicating. I am connected to Wi-Fi IE 11 works not problem just not cortana. Any one else have the same issue?
thanks,
THOMAS

 

[SINGH_saab]

hard reset your phone!!

 

[Tkukucka]

thanks that fixed it

 

[accursedvenom]

I've done that and a bunch of other things and still doesn't work. she can hear me through bluetooth though.