Why might the TP-Link TL-SG1005P PoE switch fail to power my devices

[MacSophie]

When using the TP-Link TL-SG1005P 5-Port Gigabit Desktop PoE Switch, you might find that your PoE devices aren't receiving power. This often happens because of power limitations within the switch. The TL-SG1005P has a maximum power budget for all its PoE ports combined. If the total power draw of all connected devices exceeds this limit, the switch prioritizes power to certain ports over others. Here's how it works: Ports with lower numbers get priority. If the total power needed is too high, the switch will cut power to ports with higher numbers to ensure the lower-numbered ports keep working. For instance, imagine ports 1, 2, and 4 are each using 15.4W, and you plug a device needing 19W into port 3. The switch might cut power to port 4 to handle the extra load on port 3. To avoid this, check how much power each of your PoE devices needs. Make sure the total doesn't go over the switch's maximum power capacity. You might need to spread the devices across the ports to balance the power use and ensure everything gets the power it needs.