Previously you had it working with kstars on rPi, did you try running kstars remotely from windows to rPi? Is this recent windows/Ubuntu problem with PC connected directly to camera via usb?

This is using INDI-Server on a Ubuntu PCB at the telescope system, and I use the Windows Build inside my house as the K-Stars program contol.

If I bin 2X2 it transfers and shows complete and image received by K-Stars.

When I do 1x1 binning, it shows transfer complete, however K-Stars does not log image received by K-Stars.

I need to look at the capture modules and see what the difference is. Maybe timeout, or size limitation, but whatever it is, it's in the K-stars capture module, it does not appear to be in the indi-server itself.

I do recall running K-Stars on the remote PCB, it would work, being directly connected to the camera, it does appear to be an issue when transferring to a remote k-stars from indi-server.

What happens if you save the image remotely on the indi-server instead of locally on the windows client

Yes, it works if I use K-Stars on the Ubuntu PC.

It's when it transfers to the remote computer that has an issue.

That makes it sound like it isn’t a usb issue?

Uh no, it's the same hardware configuration. Maybe I am not being clear, but how I have my setup is a Mini PC Outside running Ubuntu 20.04 with INDI-Server - Nightly build.

If I run K-Stars on the Ubuntu computer, it works 1x1 and 2x2. If I use the same hardware (INDI-Server) same USB hubs, same everything except run my Windows PC Inside, connecting to the Ubuntu Indi-server 2x2 works just fine (NOT USB issue), 1x1 does not work (Same hardware - Not USB issue).

It's the transfer from the Ubuntu MiniPC back to K-Stars windows that fails.

It seems like it may not be the QHY driver since it is apparently an issue of server-client communication, as opposed to server-camera communication.

Not sure what gave you the impression I thought it was the driver, I always stated it was the transfer between the remote PC and the Windows PC. I think I run like you do, albeit you run a Mac inside. But it's the same idea.

The QHY600 1x1 is a 60mp download. so it's a very large file.

I’m going to go ahead and get one so will see if the transfer to Mac is also a problem. Not sure how long it will take to arrive.

It's a great camera! Even at 2x2 it has great resolution.

I got my QHY600 an 1x1 bin is working fine on Stellarmate 1.5.9 on rPi4.  Haven’t tried iMac remote.

Yeah it will work fine direct connect to the K-Stars. The issue is when you have Indi server as a remote and K-Stars on a different computer.

Thanks.

Hope you enjoy the QHY600!