ZWO ASI1600MC-Pro download failure

I’ve started having problems with my ZWO ASI1600MC-Pro with image downloads. At times SGP will get “stuck” trying to download an image and eventually gives an error. I’ve tried various values for USB limit but nothing seems to fix it.

My log from the last imaging session is here: https://www.dropbox.com/s/4hu7tqq2jw3hq7f/sg_logfile_20201111185420.log?dl=0

The download hangs for much longer than the set exposure time. Sometimes the image is recovered, sometimes not.

Here is a segment from the log where the error occurred:

11/11/20 23:09:11.613][DEBUG][Camera Thread][SQ;CC;] ASCOM Camera: exposure complete, waiting for camera to report image ready…
[11/11/20 23:12:11.605][DEBUG][Main Thread][SQ;CC;] Adding sequence level notification: (IC 1805) Failure while integrating IC 1805; Event 1; Frame 20 for 240s. Image has not downloaded in alloted time period.
[11/11/20 23:14:12.045][DEBUG][Camera Thread][SQ;CC;] ASCOM Camera Error : Download timeout! Camera has not reported image as ready.
at s0.ik(q8 A_0, tb& A_1, tb[] A_2)
[11/11/20 23:14:12.045][DEBUG][Camera Thread][SQ;CC;] ASCOM Camera: Attempting to abort exposure…
[11/11/20 23:14:12.045][DEBUG][Camera Thread][SQ;CC;] ASCOM Camera AbortImage: Camera state is 2
[11/11/20 23:14:12.045][DEBUG][Camera Thread][SQ;CC;] ASCOM Camera: Asking camera to abort…
[11/11/20 23:14:12.507][DEBUG][Camera Thread][SQ;CC;] ASCOM Camera: Camera has acknowledged abort request…
[11/11/20 23:14:12.507][DEBUG][Camera Thread][SQ;CC;] ASCOM Camera: Blocking until image is aborted…
[11/11/20 23:14:12.507][DEBUG][Camera Thread][SQ;CC;] ASCOM Camera: Image is aborted…
[11/11/20 23:14:12.507][DEBUG][Camera Thread][SQ;CC;] Error while attempting to capture frame…
[11/11/20 23:14:12.507][DEBUG][Main Thread][SQ;CC;] Adding sequence level notification: Error attempting to capture image (see logs for more information).
[11/11/20 23:14:12.532][DEBUG][Camera Thread][SQ;CC;] Sending Notification: Error - Error attempting to capture image (see logs for more information).
[11/11/20 23:14:12.532][DEBUG][Camera Thread][SQ;] SGM_CAMERA_CAPTURE complete…
[11/11/20 23:14:12.532][DEBUG][Camera Thread][SQ;] Camera thread is IDLE…

I’m trying to figure out if my camera is failing or there is a problem with the Ascom interface.

I am using Ascom 6.4 on a Windows 10 system. The version of SGP is 3.2.0.603.

Thanks

Dale

First thing to do if you haven’t already is replace the USB cable.

Yes, I already did but I’m about to try a USB2 cable. I understand it could increase amp glow