Problems with Internet in sleeping mode

[Dietor]

 Hello,

I have a such problem. Approximatly in 10 min after starting sleeping mode my phone can not receive incoming calls from Skype and Viber. There is no problem in a few min after sleeping mode or when a screen is on. I have this problem whenever wi-fi or 3 G connection is. When the screen is on after that I receive messages about missing calls. Swithing stamina off, reinstalling of phone's soft doesn't help. Wi-fi is always on in settings, mobile transfer is on too. Help me, please.

[_alexdon_]

Boot your phone in safe mode,see if the same occurs:

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008

[Dietor]

Skype and Viber don't work in safe mode.

[_alexdon_]

Try to use only one of them(Viber or Skype),and use only wifi or only data.See how it goes.

[Dietor]

It's a pity, but no result.

[_alexdon_]

Are you willing to try a software repair?

[Dietrch]

Thanks Alexdon for trying to help me (I've changed my account, because forgot pass and service for changing pass didn't work (so an account "Dietor can be deleted"). Solving my problem was setting up other firmware (D5503 14.2.A.1.114).

When I set up firmware ...757 through Flashtool, the problem repeated (it was regardless Stamina off or on).

Will settting up of this firmware per PC Companion help? Does problem with battery drain in last firware exist?

[Dietrch]

...One more thing that helped me - switching off "Queue background data" in firmware  D5503 14.2.A.1.114.

In firmware .757 it didn't help.

[_alexdon_]

Opinions are 50 - 50,some say they still have problems.You could try a software repair,see if that helps.

[Dietrch]

Can I make a back up of my firmware and restore it with PC Companion (I've not found such sections in PC Companion)?