5g vs 2.4g

Here in La La Land we're a little bit back in time, and on our mobile networks we're manually tuning our mobile phones to the frequency of what we think is the best frequency and least loaded cell, too. 

I'm happy to be a networking novice along with many customers and friends using wireless and network infrastructures I had the pleasure to participate on the design, lead the set-up, and bring to operational level - in a range from a hand full to some 250'000 user (plus some 150'000 industrial devices) organisations. No CIO, CTO, or CEO ever complained that his "boss"-computer did associate with a wrong AP and was performing poor therefore. 

You read like the NAS user who wrote "I have configured my NAS with a RAID1. I can see the folders and files on one disk only. How can I check what's on the second disk?". These are **** consumer ideas. 

The re-association (to avoid the tech term "roaming" which has a special meaning) of a WiFi STA within a single network name (ESSID) between the different virtual radios (represented by the BSSIDs) is running on a much higher priority and thus much more dynamic than the change to a different network name. While a WiFi STA is asociated to a network (ESSID), it requires much more to change the network - the signal level and quality must become much worse before the client does re-associate to a different network name. With different ESSIDs, a mobile phone say on it's way home does first pick up the 2.4 GHz due to the physical higher reach/coverage. Now the mobile phone does try to stick on the same network. As there are no alternate BSSIDs - because of the **** consumer ideas - the phone will stick with the 2.4 GHz network - the coverage, the signal, almost everything is better. And it must be considered almost a wonder that it ever goes to change to another network ESSID, even if this would be a much more performing 5 GHz virtual radio.

Even when leaving band/radio steering and fast roaming capabilities away - as we have it on typical dumb consumer wireless devices - a client will change much faster to another BSSID within the same network. With all the "smart" plus the standardised helpers in place, you can smoothly walk around in the while doing a VoIP call, even with video conferencing - there will be no interruptions or hanging/lagging video streams. Everything happens within the very same network (ESSID).