I use afwall to prevent most things from having internet.
I had a lot of trouble getting wifi to work with afwall enabled in android 11.
I'm running a samsung A52 5G chinese version with android 11.
The issue is that the captive portal detection decides that there isn't internet, and that I should get fucked.
There is a lot of stuff saying that the way to disable captive portal detection is
settings put global captive_portal_detection_enabled 0
Those are all for older android, so I checked the relevant part of the android 11 source.
captive_portal_detection_enabled is deprecated, use
I tried each one individually, and both together
$ settings list global | grep captive captive_portal_detection_enabled=0 captive_portal_mode_ignore=0
after a reboot, it still says no internet and
adb logcat | grep connectivity shows
12-02 14:25:14.146 2558 14335 D NetworkMonitor/602: PROBE_DNS connectivitycheck.gstatic.com 18ms OK 126.96.36.199 12-02 14:25:24.165 2558 14335 D NetworkMonitor/602: PROBE_HTTP http://connectivitycheck.gstatic.com/generate_204 Probe failed with exception java.net.SocketTimeoutException: failed to connect to connectivitycheck.gstatic.com/188.8.131.52 (port 80) from /192.168.1.136 (port 38978) after 100
App 2559 is "Setup Wizard" in afwall for me, and allowing that wifi means the captive portal at least can figure out there is internet.
I really don't like that I can't disable the connectivity check because I would like my phone to allow me access to a network I told it to connect to regardless of what it thinks about google being accessable.
But whatever, at least it gives me internet now.
UPDATE 2021-12-08: it didn't quite work all the time. It's now working and this is now the list of things I think are relevant:
- 1000 Filter Provider, bunch of other stuff
- 10177 CaptivePortalLogin
- 5023 NetworkDiagnostic
- 10255 Setup Wizard (shows up in a search for 2559, but displays as 10255 now?)