A firmware bug sometimes results in a loss of configuration information inside the instrument. This is usually detected during the dialog with the instrument, after clicking “Start Recording”.
Under these conditions, a dialog window will pop up saying something like
The ADCP is Hopelessly Confused.
Please cycle power on the deck unit and try again.
This situation is unfortunate, but should NOT require restarting the UHDAS gui, nor should it require rebooting the linux “currents” machine.
Cycling power on the deck unit should be sufficient.
If the firmware is upgraded to 23.16 from 23.11 (what it is probably running) this should take care of the Hopelessly Confused message