I have a great deal of experience from 3152, and it has never happened to me that I get disconnected from the device.
Now I am developing a project on the 2152 (HW 6), and as the project is still buggy and causes some exceptions, I did not expect that to cause disconnections like this:
I am also being disconnected from the new WBM, but that one is reconnecting rapidly on its own.
It is quite difficult to perform debugging in debug mode when the connection is lost after a few seconds.
My PC is connected directly to the PLC and a continuous ping command running in the background show no problems when i am being disconnected.
Output.log in the plc seem to be quite old, so I suppose there is a change in log save location in this fw?

Source: