Wondering if anyone could provide insights why my older devices and lower end devices struggle, disconnect, reset and can even crash if the router has changed bands the device is on, channel width, channel, etc.   Often the device is left where connection is confused and it takes a couple of repeated attempts to get a good connection back.  All my smart devices, phones and latest hardware have no issue at all.  

To get around a lot of the challenges I have gone from Auto to having everything defined and scanned for and eliminated most interference.   I can't help to think that this is not an issue for most as many people keep with Auto settings and are not impacted with router changes to width, channel, etc.   What could it be?   Is there something special about TP-Link routers and I would experience the same thing with others?   Is there anything that can be done?