Z3 Poor / Weak and siconnectWiFi Signal

[Nihilant]

Hi, i have this problem. In my hoime and my work, when i connect to the wifi network the signal is poor and sometimes it desconnects. i have another phone and i use it side by side with my xperia and the wifi network work incredible better than the Z3. Maybe is a configuration for improve this issue. Please, reamember that this problem happens in home, work, and with all wifi networks, so isn´t a router problem. Thanks

[Uliwooly]

@Nihilant

Could you check if you experience the same in >>> safe mode

[Nihilant]

I just tried and apparently the problem doesnt happen in safe mode. What is the problem in this case?

thanks

[Uliwooly]

@Nihilant

It's a third party app causing this, it could be a taskiller, power/battery app, etc. 

[Nihilant]

so, I have to make a hard reset... or there's another solution. Cause I have the problem since Update to lollipop...

[Uliwooly]

@Nihilant

You could uninstall app by app