Disclosed are apparatus and methodology subject matters for controlling the allocation of system nodes to a variable number of communication servers in an Advanced Metering System (AMS). An Orchestration Manager is provided through which all requests for end-device communications are routed. The Orchestration Manager periodically rebalances node assignments to reallocate nodes among communication servers in order to maintain data collection efficiency and in order to redistribute end devices from a failed communication server, or to otherwise adjust for the addition of a newly activated communication server.