CalDigit TS3+ Won't Recognize USB Devices Or Ethernet With Dock Reconnect After MacBook Air Sleep

Perhaps so, BUT, in the response below that I received from CalDigit, this issue has existed since Mojave and is still a problem even for the most recent M1 Macs. So, it seems that updating to the latest macOS wouldn't necessarily fix the problem. As I mentioned previously, it's really disappointing that an issue that has existed for so long has not yet been fixed.

Taking what you and the others on the thread into consideration, it seems that this is an extension of a recurring wake-from-sleep issue that has been persistent on MacOS version past Mojave. The issue seems to strike most prevalently on monitors, but it has also surfaced for other kinds of devices on Apple computers with affected Operating Systems that are detected through a single Thunderbolt port on the computer. While the issues were mitigated by the later Intel chips and the ability to perform SMC and NVRAM resets on them, which would often help, they recurred fairly strongly on the new M1 architecture. The original M1 seems most strongly affected, with M1 Pro and M1 Max still seeing the issue but having it confined mostly to external monitors. We have made Apple aware of they issue and they have acknowledged, saying they are working on a solution with information we have provided them, but we have not had a status report available on the progress.

Appreciate you taking the time to reply, however, if you read through the forum thread I referenced, you'll find that the CalDigit TS3+ had the same firmware version back in the Fall of 2020. In addition, one poster states that he has multiple Thunderbolt docks and the problem exists with all of them. So, this clearly seems to be a problem with Catalina that has existed for more than a year and a half.

If Catalina wasn't still being supported by Apple, I wouldn't expect them to fix the problem, but it is still being supported. While I could install a newer version of macOS, I don't want to at this point, and, there are no assurances that the problem would be fixed in in a newer version of the OS.

I have e-mailed CalDigit and asked them to look into this issue and work with Apple to solve this problem. But I'm not holding my breath.