I have 3 of the X50-POE. all connected to a  TP-Link TL-SG105PP-M2 | 5 Port 2.5 Gigabit Switch - serving POE.

I also have an auto reboot scheduled every sunday.  

For some reason and I cannot understand why.  They just stop.  I cannot connect to them either on the App. I keep hitting the retry button.   I always need to unplug the POE switch then restart it.  

I tried, removing them all and then setting up the network,  I just do not know what is going on.  

When they are up - they are great.  but seems there is there unpredictable disconnect 

Anything that I could be missing here.