A link controller for use in a node of a network includes a digital controller (102) that employs a knowledge-based control program (103). The device and method provide flexible master node designation, automatic installation, configuration and reconfiguration, and recognition and correction of network communication problems resulting from interference and other adverse conditions. The knowledge-based control program (103) employs an inference engine and a set of rules to dynamically optimize network configuration. Multipath is managed by locking on to reflected signals when a direct signal is unavailable. Operation is transparent to network users.