Solar Monitoring: PNA Troubleshooting

Restore Solar Monitoring

For solar systems connected to internet via PNAs

Guide to restoring your solar system’s monitoring connection to the internet if connected using PNAs (Powerline Networking Adapters). A down connection does not affect your system’s production. It only affects the solar system’s ability to upload production data to the internet.


Reboot Your Router/Modem

After rebooting both your router and modem, continue to below.


Do you have a device like below?

Powerline Network Adapter

This is a Powerline Network device. It takes the internet connection from your router to the solar system. You should have two of them:

  • One is installed where your router is.
  • The other is installed near your solar system.
  • The two devices work together to allow your solar system communication with your router and the internet, allowing you to view solar production online.

Important: You may see a button on your PNA unit. DO NOT press this button as it will remove the pairing between the two units.


Verify the Lights

Look at the Powerline Network device installed near your modem/router.

Top Light: Green

  • Indicates the device is receiving power.
  • If this light is off, try plugging it in a different outlet (not in a power strip or surge protector).
  • If the device does not power on, it might have become defective. Please contact us.

Bottom Light: Green

  • Indicates the device is connected to an ethernet port on your router.
  • If this light is off, check that the ethernet cable is properly connected to your router. Try a different ethernet cable if necessary.

Ethernet Cable Line

Middle Light: Green, Amber or Red

  • Indicates the device can see its partner.
  • If this light is off, the device cannot see its partner and solar moniotring will not work.

Troubleshooting an Off Middle Light

Start from the first bullet below before continuing to the next bullet. You have succeeded when the middle light turns on.

  • Unplug the device. Wait 30 seconds. Plug it back in.
  • Make sure the device is plugged directly into the wall. No power strips, extension cords, or surge protectors.

If the Middle Light is Still Off

Look for the partner device (it looks identical).

It is likely located near your Solver Inverter or Solar Monitoring device, either exposed in the garage or protected outside in a weatherproof box (such as pictured below). The weatherproof box may be opened.

Unplug the device. Wait 30 seconds. Plug it back in.Dedicated Outlet


Getting Back Online

Once all 3 lights are on, it may take up to 15 minutes for your solar system to re-connect to the internet. In most cases, it takes up to 72 hours for all backlogged data to upload. During this time, errors such as “microinverters not reporting” or  “no data – check communication or device” may appear. This is common and will disappear once all backlogged data is uploaded.


Down Monitoring ≠ Down Solar System

  • If your internet connection is lost, this does not affect your solar system’s production. Your system will continue to produce power normally.
  • Your system will continue collecting production data and  will upload it once the internet connection is restored.
  • Average backlog limits: Enphase (6 months), SolarEdge (30 – 45 days), SMA (30 days)


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