No Internet after few minutes during lock screen

[Sajid4109]

I have galaxy a32, whenever I lock my phone, after some time suddenly internet is not working.

I dont get notifications from chat apps etc. and also for example if Im logged in with WhatsApp web, some time after locking my phone, I get no connection error on whatsapp web, when I unlock my phone suddenly i get all the notifications and it recconects to whatsapp.

I know for sure its not just with whatsapp, I dont get any notification from an internet depanded app when the phone is locked.

I checked and data saver is off, notifications are allowed, background activity is allowed, background data usage is allowed, Put app to sleep option disabled in device care, of course do not disturb disabled.

It is also not depanded on WiFi/Mobile data, I mean it happnes on both.

Any ideas??? 

It gets me crazy!!

Model - SM-A325F

Android version 12

One UI version 4.1

[innovativeAR121]

Reset it factory reset

[Sajid4109]

Sb kuch kr k dekh lia bro

[GoldenXPK]

Check if you are using Power Saving mode. It prevents the apps from running in the background.

[Sajid4109]

No i am not using power save mode

[Usman202]

Go to settings and then battery and device care and then Click on battery option and then click on background usage limits and then go to never sleeping apps option and click on plus + sign to add WhatsApp there then the WhatsApp never disconnected.
Do this right now

[Sajid4109]

Only whatsapp ka issue nhe hai bro wifi disconnect ho jati hai.... 2sry mbl se router ki settings open kru to A32 list me show e nhe hota... Jb screen on krta hu A32 ki to fori show ho jata router me... Maine TP Link b new purchase kr li is problem ki vaja se but same issue remain.

[MÌÀÑ]

Wifi ki setting mai jao uder option h kay agar mobile screen of ho gy to wifi bend ho jae ga or agar screen on kro gy to sath hi connect ho jae gy battery save krta ....wifi setting mai