0x32 is located in building A, w/2 cid, and a 6 port fiber card. port three connected via mck fiber extender to building B with fiber station module. port four connected with mck fiber extender to building C with fiber station module. different ports and different cards has been tried and the port that is attached to building C keeps going out during lightening storms. Always the port connected to building C. only thing connecting these buildings are non shielded fiber. grounding has been checked in both locations. Any hints to fix this solution.