2.4GHZ vs. 5GHz Band Adjudication
If your WIFI-capable (phone, tablet, laptop) device supports both 2.4GHz and 5GHz spectrums, and your access point supports both spectrums,
which device selects the band for the connection? Does the laptop decide? Does the access point decide?
Does the WIFI-capable device choose the spectrum, or does access point choose the spectrum?
If you are at long range, and only can connect at 2.4GHz, then walk closer to the access point - such that 5GHz becomes viable,
which device adjudicates the switch from 2.4GHz to 5GHz? Does switching the connection back and forth between 2.4GHz and 5GHz ever occur?