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Why might my TP-Link TL-SG1005P PoE switch not be powering my devices?

1Answers
Jackie
12/17/2025, 07:10:52 PM

If your TP-Link TL-SG1005P 5-Port Gigabit Desktop PoE Switch isn't supplying power to your PoE devices, it's likely due to power limitations. This switch has a maximum power budget for all connected devices. If the total power draw of your PoE devices exceeds this limit, the switch prioritizes power delivery. Here's how it works: Ports with lower numbers get power first. If the total power required is too high, the switch will cut power to the higher-numbered ports to ensure the lower-numbered ports remain powered. For example, if devices on ports 1, 2, and 4 each use 15.4W, and you connect a device requiring 19W to port 3, the switch might cut power to port 4 to accommodate the extra load. To resolve power issues, check the power consumption of each PoE device. Make sure the total power draw doesn't exceed the switch's capacity. You might need to redistribute devices across ports to optimize power distribution and ensure all devices receive power.

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