I recently started to use a ZWO EAF focuser. Unfortunately, after 1 or two successful attempts. I am stuck with the following error message on kstars integrated indi client:
[ERROR] Failed to read max step. Error: 4
[ERROR] Failed to stop focuser. Error: 4
Eventually the problems goes away when I reload the driver with indi web manager. However it is still not clear to me what does this error code stands for.