Xperia z1 WI-FI connectivity/coverage issues

[kmano1]

When ever i try to connect to my WIFI there is a lack of wifi singnal even though I am right above my network router. This problem occured one week ago on the 29th of dcember 2014. Before i would get full bars on the wifi connection but now I don't know why is has suddenly dropped.

[Uliwooly]

@kmano1

Do you experience the same if you are at the same room as the router? 

[CameronT]

Hi @kmano1,

Do you have the same issue on any other WiFi router/network?

And to be sure, have you restarted your router and tried to change the WiFi channel?

[kmano1]

Yes I have the same experience when im in the same room as the router.

[Uliwooly]

@kmano1

What about @CameronT's questions?

[kmano1]

Yes i have the same problem with other routers. It make it very difficult to surf the internet when it keep getting a poor connection.

[CameronT]

@kmano1

Try starting your phone in safe mode and see if the issue is the same.

[kmano1]

In safe mode the singal is much better without the third party applications.

[Uliwooly]

@kmano1

You will have to find the culprit that's causing this issue. 

[CameronT]

@kmano1, so this would indicate that a third party application is causing the problem. There's a couple of options here.

First, I suggest is to update everything. Go to Settings > About Phone > Software Update and make sure you have the latest firmware. Next, update all your downloaded apps in the play store.

If this doesn't work you can either start going through your installed apps and uninstall them one by one, testing after each one to identify the culprit as uliwooly said, or alternatively run a software repair which will completely reset your handset. If you do the software repair just try to test after each app you reinstall to identify which one causes the problem.