USA
iPad (iOS 10.3.3), iPhone 6 (iOS 11.4)
Orion EQ-G as EQMod, using USB2EQ5 Interface Cable from http://www.store.shoestringastronomy.com/products_eq.htm
Paramount MyT
ASI1600MM-Cool/ASI120MM-S
ZWO EFW (36mm, 7 Position)
fails to connect with Orion EQ-G mount, tried various possibilities, including SynScan. Orion Atlas, and Sky Scan. EQMOD is on the list of supported mounts on the INDI page ZWO references
fails to connect with Paramount MyT (It's on the supported mounts page for INDI ZWO references but I think TheSkyX needs to be running and TheSkyX INDI driver could then allow the ASIAir to connect with the mount. I tried booting the ASIAir with a keyboard to see what would happen - a username and password are required in Rasbian to access the OS (I have previously operated TheSkyX with a Pi running Rasbian and it works quite well). I also connected the ASIAir directly to the Paramount with a USB cable to see what would happen (as expected, mount connection failed).
Also attempted connecting a ST-4 cable from the ASI120MM-S to the AutoGuider port of the Orion EQ-G mount. Then tried On-Camera-ST4 in ASIAir where I also get "failed: Mount" as the message. When connected with the USB2EQ5 Interface Cable to the ASIAir and choose On Camera ST4, it does appear to connect. At least I don't get a mount failed message.