schooler Anyone know another way to reach out to them?
Gary, try a direct email to asiair@zwoptical.com
If you don't get a response from this address, I have an email address that goes right to the top. But try this one first.
I have found that unless you have a post on this forum that blindly praise ZWO, your post will often get ignored, especially if it is regarding touchy subjects like persistent failures, such as USB ports and WiFi implementation.
Do be aware that they are on a different time zone, and often don't work on weekends (they don't work 80 hour weeks like I used to do in the Silicon Valley :-), and they have some week long extended holidays. They usually also have an annual company wide week long trip (donno about since Covid), when no one is monitoring customers' mail.
BTW, did you try a USB 2 cable (the one with the small 4-pin Type B connector) instead of the fatter USB 3 Type B connector (with the extra 5 pins) and plugged into the USB 2 (black plastic insert) port of the ASIAIR?
It will be sustantially slower, but should tell if it is a flakey USB 3 port on the ASIAIR. USB 3 uses the power and ground pins of the original USB 2 connector, but passes data (and an extra ground shield drain) on the 5 extra USB 3 pins (if you look deep into a USB 3 (blue) Type A connector with a flash light, you will see those extra pins).
The USB 3 port on ZWO's I/O board seems anecdotally to have problems that did not exist in the second generation ASIAIR that used an actual Raspberry Pi 4 board. From the third generation ASIAIR on, the USB implementation is on their own daughter card.
Chen