So nintendo switches and roaming, they will try to stick to the existing access point no matter the strength of the signal, fast roaming setting or anything you can think of to make them move on the same network. I run separate 2.4ghz and 5ghz because of this and IOT devices that don’t like combined networks. Then when the switch moves to a different area and has bad WiFi, change for 2.4 to 5ghz or the other way and it will pick up the closest access point.
So nintendo switches and roaming, they will try to stick to the existing access point no matter the strength of the signal, fast roaming setting or anything you can think of to make them move on the same network. I run separate 2.4ghz and 5ghz because of this and IOT devices that don’t like combined networks. Then when the switch moves to a different area and has bad WiFi, change for 2.4 to 5ghz or the other way and it will pick up the closest access point.