Can anyone say anything about the stability of the Zyxel 645? That's what I'm using now, and it's not awful, but it's not good, either. I don't know if the Visionnet one was just very good or if the Zyxel is just bad. If someone can tell me that the Zyxel's bad, then I'll consider a different model modem than the Visionnet. Otherwise, I'm gonna stick with something that I know works.