Wifi does not work properly

[WarMachinee]

Hi guys i have a problem. My wifi not work properly. I am connected to wifi max signal, but crhome, facebook any app need connection dont work. I go to wifi setting, turn off and reboot wifi, but after the problem coming. Why? 

[Roadrunny76]

Did the connection between your phone and your router ever work? Does your phone work with other router? Does any other phone work with your router? Do you have an exclamation mark (!) next to the wifi signal sign? 

[WarMachinee]

Any phone work properly with my router.only my xperia have this problem. i turn on my WiFi,serach and Connect to My wifi. the wifi icon is now dispayed  but the arrow(up/download)on WiFi icon disapear.when i play with clash royale dosent work but i am connected to my WiFi. Sorry for my bad english

[WarMachinee]

Yes i have a exclamation mark but for one secondo.after is display  only WiFi icon

[Roadrunny76]

Try to "forget" your wifi network and re-connect. Did it ever work properly? 

[WarMachinee]

Yes i've tried this way but not work

[Roadrunny76]

Did it ever work? Does your phone work with another wifi router? 

[WarMachinee]

No it dont ever work, but any wifi work improperly. An upgrade of sw can resolve this problem? 

[WarMachinee]

The wifi is connected but I do not think about communicating with my smartphone because the darts of the wifi icon on the statusbar disappear. Open when it is connected, it is disconnected-recoiled by itself.

[Roadrunny76]

There are many things that can cause this: time on device / router / internet server; security type; antivirus etc. Either you search the web and try them all or you can try "repair" with Xperia Companion and see, before installing any app, that you get communication. Very important: backup everything before because it will wipe your phone and install the OS again, on clean.