I'm experiencing also connection problems since ago, I'm in Spain and in fact my devices have no connection since yesterday evening, this is really unaceptable.
Server down ?? All devices are blinking for several hours (date 15-1-2022 )
Same for me: I get a notification everytime a device connects to my Wifi and all my devices are reconecting once a minute (over 17 of them) as if they could not use the wifi lease they`ve got.