Problems connecting to ASI1600MM-C

kens

I have the ASI1600MM-C v2 , ASI120MM-S and ZWO EFW.

All are individually connected to a powered USB3 hub (NOT using ASI1600MM USB ports) which in turn connects to an Aaeon-UP Core computer (ATOM based x64) running Ubuntu 18.04 and INDI drivers.

Sometimes when I power up the ASi1600MM-C fails to make a USB connection. The ASI120MM-S and EFW never have a problem.

When this happens I need to unplug the USB cable from the ASI1600MM-C and replug then it is detected by the computer.After that everything works properly.

At first I thought it was a timing issue so I have tried to delay providing power to the ASI1600MM-C till after the computer booted but this did not help. I also tried to delay booting the computer till after the USB hub and devices had been powered up. This seems to help but stil I get the situtation sometimes when the ASI1600MM-C does not connect.

When it has trouble connecting it seeems to be drawing more current than usual so maybe cooling is switched on and causing the issue? I do normally turn off cooling at the end of each session.

Any help you can offer is appreciated as I would like to have an automated operation.

Support@ZWO

Please try connecting the camera directly to the PC, do not add any USB hub.

And do you have other computers? You may try this camera on other computers with different cables, I recommend you test it in ASIStudio.