An interesting thing about my VOX is that it only functions over a wireless connection. Repeated attempts to use the Ethernet cable have all failed.
This is with SmartSDR on a PC and not with the Maestro. Although I have a Maestro, I haven't been using it lately and have not tested the VOX function through it. Using VOX with the Maestro is just too cumbersome due to too many menus.
I am having a similar issue with VOX after loading 1.9.9. Adjusting VOX sensitivity and MIC gain alleviated the problem for the most part, however I still get the occasional drop while talking, not too often since the adjustment was made. It will not trip the VOX again if I continue talking, waiting for a second or two resumes normal operation.