Hi, for the past 2 weeks, one of my HS210 restarts during the night and wake me up because the lights are on for 2 seconds. It is as if this pair of switchs restarts, reconnect to wifi, turn the lights on for 2 seconds and then turns the lights off. This first time I thought TP-Link was doing some firmware updates but it is happening very often. What could cause the switch to behave like this? All others are fine (I have additional HS210, HS200 and HS220).

Thank you for your help.