Think of your device as a person holding a walkie-talkie, walking away from a radio tower. As you walk, the static increases.
Imagine your laptop is a traveler walking through a vast library, looking for the best light to read by. is a setting that determines how "picky" or "eager" that traveler is about moving to a new desk with a brighter lamp. The Story of the Two Students what is roaming aggressiveness in wifi