If it was working fine before and you have made no changes to software or gear, you might want to start looking at cables and hubs or any other cable involved in the operation of your CFW. We would also, in this case benefit by seeing your ASCOM CFW logs. SGPro's side of the story is that the CFW port is now closed.
[8/30/2016 12:26:06 AM] [DEBUG] [Telescope Thread] ASCOM Filter Wheel: Error in SetFilterWheelPosition. : CheckDotNetExceptions ASCOM.Nautilus.FilterWheel PositionSet System.InvalidOperationException: The port is closed.
[8/30/2016 12:26:06 AM] [DEBUG] [Telescope Thread] Adding sequence level notification: Failed to set filter, aborting sequence!
[8/30/2016 12:26:12 AM] [DEBUG] [Telescope Thread] Error setting filter position! Cannot continue sequence!
[8/30/2016 12:26:12 AM] [DEBUG] [Telescope Thread] Could not set the centering override filter! Aborting auto center...