This is more for learning purposes. I use WIFI analyzer software to show channel maps. With a lot more people going online these days, all the 2.4G channels are busy. All 2.4G channels has up to 10 access points. My laptops are all old and have only 2.4G. I think I can buy a dual channel dongle and use 5G. But I like to understand this more before spending the money. I only have 3 devices using 2.4G to my router. I know that there are many more 2.4G devices using the frequency. But they are not connected to my router. how is that affecting my throughput to my ISP ? If the other devices has no impact to me, then the solution is not just buying a 5G dongle.