A mounting assembly configured to mount a communication connector to a panel of an electrical system. The mounting assembly including a stress-distribution member that has an abutment surface abutting a flange of the connector. The stress-distribution member has a fastener opening. The mounting assembly also includes a fastener element that extends along a central axis. The fastener element has a cross-section taken perpendicular to the central axis that is sized and shaped to permit the fastener element to be freely inserted through through-holes of the connector and the panel. The fastener element is inserted into the fastener opening and secured to the fastener element. The stress-distribution member distributes mechanical energy provided by the fastener element when the connector is in a shock or vibration environment.