Turn off Connectivity checks and captive-portal pings on LineageOS 21
Network checks
Sensitivity 2/5
Default: On
Phones / LineageOS 21 / Connectivity checks and captive-portal pings
Android devices send lightweight HTTP queries upon joining an access point to verify whether an active internet connection exists. These transmissions reveal connection timing and the current public IP address to the platform servers.
- Goes to
- Default
- On
- Control
- Can be switched off
- Effort
- several steps
- Needs
- adb
How to do it
Captive portal checks ping standard endpoints automatically; disable or redirect them via ADB using the captive_portal_mode global setting.
Menu names may differ by device and version.
What you lose
Captive portals on public Wi-Fi networks may not automatically trigger a sign-in prompt.
What is collected
Ip address, request timestamps, http response headers.
The checks exist to detect restricted local networks and launch captive-portal login pages when required.
Retention is not stated here. The sensitivity rating is this site's own estimate.