Since recently my phone stopped getting push notifications. Initially, I thought it's a local messaging app problem until realized that the mail and other applications were behaving the same way. I don't get security messages or work-related info until I decide to open the app manually and get flooded with notifications at that time.
If any app is opened, all the rest seem to start sending theirs. The phone is unusable.
I've tried the following:
- Disable app optimization
- Double checked that all data, background usage are on and any limits are off
- Push notifications are on and working ... for about 5 minutes after I lock my phone
- keep wifi on seems to work and all notifications are being received but I spend 20% time in a wifi covered area so that's not much use
- factory reset, cleaning cache, and latest updates did nothing
The device is under warranty, but the warranty center has returned it with their conclusion "Everything is working fine" after two visits