My Personal Hotspot (henceforth PH) remains on, with the same password (see underneath).
After clicking the Wireless icon on my notification area/system tray, I see 'iPhone' on my WiFi list and connect successfully.
Suppose that my iPhone remains on, but I shut down/hibernate/sleep my laptop. After I turn on my laptop again, why does 'iPhone' never appear on my laptop's WiFi list automatically? I have waited 10, 30, 60 mins, and repeated this process 5 times.
Then I enter Settings > PH, change nothing, and see no changes. 3 mins. later, iPhone appears on my laptop's WiFi list.