Hello,
I'm sorry to revisit this but I'm still having this issue. They never got back to me from a few months ago and i just kind of let it go because I haven't had to deal with rebooting the modem until today when my power went out. I called them tom complain about it some more and asked again if they can do what you mentioned above and they are saying that they have no way of provisioning the modem to only look for my router. They are blaming it on the router (of course it's the easy thing to do). So, just for the sake of trying do you have any idea what settings, if any, in the router might allow this to happen? I mostly just did the basic setup so I can't imagine I changed anything that would cause this.
Thanks!