Today my vox stopped working. Unfortunately, I hadn't stopped working, so had to leave it until this morning when I finished work shift.
Returned to find vox still not working, whereas all other sounds and my mic worked fine. Came to this section to see of any news and found this thread a couple days old and full of good leads and advice.
However, as I began going down my checklist, an old nemesis popped into mind. Right about the time of the new Miles Sound system implementation, we went round and round and finally I think Skuzzy suggested something about my firewall. Voila!!!! There it was and here AGAIN!!! I found that the range did not include the one that vox was carried on.
I now am receiving vox clearly and not receiving the dropped UDP message anymore.
I am not certain if this helps earl at all but one additional place to look in the future (before I loose anymore valuable hair plugs ).