During diagnostics, a network technician finds that data meant for the subnet 192.168.5.0 is taking an unintended route. Examination of a critical intermediary device shows that the packets are being dispatched to a gateway address that is not in use on the network. What is the BEST course of action to resolve this routing issue?
Power-cycle the intermediary device in an attempt to refresh the routing table and correct the issue.
Inspect all physical connections to the intermediary device to ensure there is no signal degradation.
Modify the intermediary device's configuration to direct traffic for the subnet to the proper gateway.
Switch the routing protocol on the intermediary device to automatically find the most efficient path.