My Ubiquiti setup (one LR and one lite) was done back in 2018, devices on the network is roughly the same in the past 5 years, only phones laptops changed due to upgrades. Since 2020/21 their firmware updates started dropping support of old device randomly, or support become worse (devices get disconnected frequently or full bar but not responsive). First was my Kindle 3G keyboard, then Fitbit Aria Scale, then quite a few smart switches/plugs. I literally scratched my head to understand the settings, but they just won’t connect to the Ubiquiti AP. I had to buy an Eero as backup and continuously migrate these older devices as they are unable to connect. Their most recent firmware update last week kicked my Sony TV off the network(bought in 2018), I have no idea what they are thinking and wasted 1 hour rebooting and blaming Sony, then found it connect to the Eero AP just fine.