Private number after upgrade to Android 6

[Ruslan123]

Hello!
Sony xperia Z2, model D6503. After upgrade from Android 5 to Android 6.0.1 I have problems with my numbers in my Recent call log. For example,  I call on number 88121234567 (it's not number from my Contacts) and when I see in Recent Call, what it's Private number, not 88121234567.

[DanijelQ]

I'm very disappointed in sony. Support is desperate! All my phones were by Sony, since t610 and it's time for Samsung

[DanijelQ]

I received an update number 23.5.A.1.291 and now there is no more bags with calls. 
But now there is a bag with WIFI. When I open any application, says Check your internet connection and error in connecting to the server.

What should I do?