Why isn't the Link/Act LED illuminated when a device is connected to my TP-Link TL-SG1008D switch?

[MacBethany]

If the Link/Act LED on your TP-Link TL-SG1008D switch isn't lighting up, even though a device is connected, here's how to troubleshoot the issue: First, make sure both ends of the network cable are securely plugged in to the switch and the device. A loose connection is a common culprit. Second, confirm that the connected device is powered on and operating correctly, as the LED only activates when a link is established. Next, consider potential transmission speed and duplex mode mismatches by adjusting these settings on the connected device. Lastly, verify the cable length; it should be under 100 meters (approximately 328 feet) to prevent signal degradation. If these steps don't resolve the issue, consult the TP-Link TL-SG1008D product manual or contact TP-Link's technical support for further assistance.