i'm using Airdroid 4.0.0.1. i failed to connect my device with my pc when my device is far away from my pc. is there something wrong with my general setting? my general setting pretty much looks like device name A51w, remote wake up "on", power saving mode "off", dim the screen when airmirror starts "off", keep screen awake "off", require confirmation for web lite "on", remote transfer for file transfer "always allow", and port number "auto". i saw the problem like this in Airdroid 2 causes by "push service". but in Airdroid 4 there's no "push service" button. how do i manage my device to keep connect with my pc though it's far away. please respond to my question as soon as possible. because i really love this app. i think setting option in Airdroid in my phone is different. my phone is oppo A51w android version 5.2.2