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  2. I get an "It is operating with POE Class 0 Power Supply" error, even though it is connected to a POE+ switch. What do I do?

I get an "It is operating with POE Class 0 Power Supply" error, even though it is connected to a POE+ switch. What do I do?

  • Network Cameras
  • Installation/Configuration

Problem Description

Multi-Sensor Cameras, such as WV-S8531, shows an error “It is operating with POE Class 0 Power Supply. Connect the correct power supply” even when the customer claims that cameras are connected to a Cisco POE+ switch with good amount of wattage and Class 4 distributed on the camera. 

Please Enable LLDP Function on the Cisco Switch Settings.

This will fix the Class 0 power supply error message.

Information on LLDP

 

LLDP is a neighbor discovery protocol that is used for network devices to advertise information about themselves to other devices on the network. This protocol runs over the data-link layer, which allows two systems running different network layer protocols to learn about each other.

LLDP Configuration reference through Cisco:

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12-2_37_ey/configuration/guide/scg/swlldp.pdf

Article number：us-fr124476

Last updated：June 18, 2025

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