Android 16+ gates per-app access to local networks behind a runtime
permission; without it the app's LAN logins time out with zero packets
leaving the phone (browser works — it is not per-app-gated). The new
device guide covers the sideload install, first-run server URL, the
permission prompt (and manual re-grant path), and a triage table for
the login screen's error line. Per the user: overlay-VPN addresses are
not a consideration and stay undocumented.
John O'Keefe
b4b1deafb8