An LCS networking device multi-host primary circuit board system includes a primary circuit board having a host processing system that provides an operating system for an LCS. A networking device connector on the circuit board is configured to connect to a networking device that performs networking operation(s) for the LCS, with the networking device connector also coupled via the circuit board to the host processing system to provide a first host coupling that is used by the networking device to access the host processing system. A first orchestrator device connector on the circuit board is configured to cable to an orchestrator device including an orchestrator processing system that performs orchestration operations for the LCS, with the first orchestrator device connector also coupled via the circuit board to the networking device connector to provide a second host coupling that is used by the networking device to access the orchestrator processing system.