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A technician is troubleshooting a network issue. Users report that the connection keeps dropping and reconnecting every few seconds. The technician: - Verifies the network configuration settings are correct on the workstation - Tests the network cable from the workstation to the switch and finds no issues - Uses a known-good workstation on the existing network cable and replicates the reported issue Which of the following should the technician do next?
Correct Answer: D
Since the NIC, cable, and workstation configuration have all been ruled out, and the problem persists even with a known-good PC on the same switch port, this behavior points to an unstable link at the switch itself (often called "port flapping"). Examining the switch's event or syslog will reveal if the port is constantly going up and down, confirming a hardware or configuration issue on the switch side.