I was wondering whether anybody else had this specific issue and found a solution:
Normally I run the ASI1600MM-PRO on a Raspberry Pi and it works just fine. Due to another problem I had to use a MacBook Air. This has only USB-C ports and to connect the camera I used an Apple adapter (the one with USB-C, USB-A and VGA). With this connection Ekos cannot establish a connection to the camera anymore. In the log the message is: "Unable to establish: + ZWO CCD". To me this appears to be a problem specific to the adapter and INDI, since the following things do work: with the same cable and adapter I can connect to the camera from the laptop just fine with the ASIStudio software. Inside with the desktop computer the camera happily communicates with Ekos, both with the same cable or a USB2 cable, when plugged-in directly to a USB-A port.
Yes I have a similar issue where Ekos on my MacBook cannot connect to an ASI2600MC. I have not tried with other ASI cameras that I have. I seem to recall a comment from Jasem in one thread or another about this and that it was fixed in a nightly build but since there are no nightly builds for Mac I have not been able to test it. Maybe I am wrong about this though.
Wouter van Reeven
ASI6200 and 7 slot 2" filter wheel with a SkyWatcher Esprit 80 ED on a SkyWatcher HEQ5-Pro
ASI1600MM-Pro Cooled and 5 slot 1.25" filter wheel with an 8" TS Ritchey-Chrétien on a SkyWatcher EQ6-R
I can confirm that the problem disappears when connecting to an indiserver on the same laptop which is running the latest driver compiled from source! So I would hope time will solve the issue also for the internal Kstars indiserver in some future version.