In "adb forward" mode, by default, scrcpy connects to localhost:PORT, where PORT is the local port passed to "adb forward". This assumes that the tunnel is established on the local host with a local adb server (which is the common case). For advanced usage, add --tunnel-host and --tunnel-port to force the connection to a different destination. Fixes #2801 <https://github.com/Genymobile/scrcpy/issues/2801> PR #2807 <https://github.com/Genymobile/scrcpy/pull/2807> Signed-off-by: Romain Vimont <rom@rom1v.com>