On follow-up, by Jove, I think I've got it!! Cobbled together just enough 'rules' and since doing so, well....knock plywood but looking good re: 'disconnectivity'.
Been so long since it's been staying connected even for 24 hours, I'll be somewhat expecting trouble still. Looks good recently though. Dang firewall. Can't live with 'em and can't live without 'em.
