Technical issues with Heroes III.

Hey everyone, when you ping someone in Hamachi, is everything always okay? Let me explain what I mean: 1) A ping of ~100 and 0% packet loss – is that a sign of a stable game? 2) A ping of ~1000 and packet loss up to 25% – is that a sign of… an unstable game? 3) Packet loss of 25-50% – has anyone experienced playing with that? I'm looking for some guidelines in these still somewhat unfamiliar waters for me. Why am I asking? I've tried connecting with forum users three times, and something always goes wrong. Sometimes someone appears in Hamachi, sometimes someone disconnects. It seems like a couple of times we managed to both get into the game at the same time, but most of the time, the second player joins, but can't click or change anything. The most noticeable symptom last time was a ping of 700ms with packet loss up to 80%! The ping for dial-up is good, but obviously, with that much packet loss, the connection is practically impossible. In the past, the packet loss was also around 20-40%, and at the same time, my connection is usually good, I have a "white" IP, and the other players had broadband access and, according to them, no connection problems.