Downgrading a 1.6 Automation Server back to 1.5.0
You cannot downgrade a 1.6 Automation Server to 1.5.0 using the IP log on.
To downgrade an Automation Server from 1.6 to 1.5.0 you need to connect the Device Administrator locally using a USB cable. (DFU mode is used)
The IP address is also reset.
This is the similar as the downgrade from 1.5 to 1.4 see Lessons Learned Article #16061