Mobile problem??

[e30 freek]

Ive bought a Xperia z about two months ago and its been working fine but all of a sudden its messed, it keeps saying wifi authentication problem even if the wifi signal is full it will drop down to one bar and say wifi authentication problem.

Any solutions? ive tried restarting device and router, oh the router is brand new about a week old Brightbox

 

[Grayfox]

Forget the network and reconnect to it.
Try connecting to other networks
Change the WiFi password.

 

[e30 freek]

Forget the network and reconnect to it.
Try connecting to other networks
Change the WiFi password.

Thanks for the quick reply ive tried forgetting it and reconnecting, ive tried connecting to my uncle who lives next door but its still the same story he also has a brightbox its frustrating because im using my old mobile and its connected fine thanks anyway

 

[Dean]

A search reveals it's a problem with the phone. I don't have any fix for it, but I would contact SONYs support and see what they say.

 

[e30 freek]

I've contacted them and they said change your channel or something to 11 on the router so I did and it works!! Thanks @Dean and @Grayfox