Home > Wireless LAN > Other Topics > Flashing lights on a Cisco Meraki 802.3af Power Over Ethernet Injector

Flashing lights on a Cisco Meraki 802.3af Power Over Ethernet Injector

Table of contents
No headers

A Cisco Meraki 802.3af Power Over Ethernet Injector will flash its link and fault lights if it is unable to correctly power the device plugged into the "Out" port.



  • Device running to the "Out" port of the PoE does not accept PoE
  • Damaged cable
  • Different power requirements
  • Improperly seated cables
  • Power source is not providing enough power to the PoE injector
  • Malfunctioning Device


  • Ensure device plugged into the "Out" port of the PoE accepts PoE
  • Check cabling
  • Check cable seating
  • Ensure that the "In" port of the PoE runs to your internet connection, and the "Out" port runs to the Meraki device
  • Ensure your power outlet is supplying adequate voltage
All these situations can be fixed with some very quick troubleshooting, however, if the fault light is not flashing and is instead solid red, the POE Injector will likely not function again.
Last modified



This page has no classifications.

Explore the Product

Click to Learn More

Article ID

ID: 1637

Explore Meraki

You can find out more about Cisco Meraki on our main site, including information on products, contacting sales and finding a vendor.

Explore Meraki

Contact Support

Most questions can be answered by reviewing our documentation, but if you need more help, Cisco Meraki Support is ready to work with you.

Open a Case

Ask the Community

In the Meraki Community, you can keep track of the latest announcements, find answers provided by fellow Meraki users and ask questions of your own.

Visit the Community