Smartphones
Environment
Environment
Pixel phone on Android 15 connected to a mesh Wi-Fi network.
What happens
What happens
Push notifications arrive together only after unlocking the screen or switching to mobile data.
What I have tried
What I have tried
Disabled battery optimization for affected apps and reset app permissions.
I would appreciate advice on how to identify the root cause without risking existing data or configuration.
COMMUNITY RESPONSES
Verified community troubleshooting
1 reply
0
Posted 2w ago • 0 confirmations
The symptoms fit this explanation quite well.
Likely cause: The router or private DNS path closes long-lived push connections while the phone is idle.
What I would try: Test without private DNS, disable aggressive router client steering and ensure TCP keepalive traffic is not filtered.
Take a backup or note the current setting first so you can roll back easily.
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AI DIAGNOSTICS
Incident analysis
Most likely causes
The router or private DNS path closes long-lived push connections while the phone is idle. 80%
A recent software, firmware or configuration change is exposing an existing compatibility issue. 34%
Summary
The reported behaviour is consistent with the router or private DNS path closes long-lived push connections while the phone is idle. The safest next step is to verify that hypothesis with a reversible test before making permanent configuration changes.
Suggested Fixes
Verify the likely cause
Test without private DNS, disable aggressive router client steering and ensure TCP keepalive traffic is not filtered.
Validate and monitor
Reproduce the issue once after the change, review relevant logs or metrics, and keep a rollback path until the system has remained stable.