A network monitoring architecture for multiple computer network systems is disclosed. In particular, the network monitoring architecture includes an agent system installed within each computer network and a remote central management unit in communication with the agent system of each computer network. The agent systems collect data from key network devices that reside on the corresponding computer network, and send the collected data to the remote central management unit as a message through the Internet. The data from the computer networks are processed at the remote central management unit to determine imminent or actual failure of the monitored network devices. The appropriate technicians can be immediately notified by the central management unit through automatically generated messages.