Wifi problem

[Raven5]

Hey,

I really need to know how my Xperia LT15i will connect and remain connected to my wifi connection?

It closes the minute it is connected to my network and I cannot access any application because of that 

[Alexander1]

Have you tried to connect to a different access point/router? 

Check this FAQ thread for some good advice: 

http://talk.sonymobile.com/t5/FAQ/Wi-Fi-problems/m-p/348104#U348104