they didn't get back to me, sadly, when I did the same.
your peculiar issues could be a symptom of massive, but not total packet loss. If you have something like the UNIX ping program, on your PCs, see if you can get reliable ICMP ping response from the Hero, when it's apparently connected.
keep on posting the relevant info; it helps others who run into this problem in the future, to know they're not alone. sadly, again, I fear it isn't going to help either of us much