Step by Step Guide: Connecting Fronius Inverter to Wifi

Step by Step Guide: Connecting Fronius Inverter to Wifi

Step 1: Activate the Inverter's Wi-Fi Access Point

  1. On the inverter's screen, press the Enter key (middle button).
  2. Navigate to:

Setup > Wi-Fi Access Point > Enable

  1. The inverter will start broadcasting a network like:

FRONIUS_240.xxxxxx


🔹 Step 2: Connect to the Fronius Wi-Fi

  • On your phone or laptop, connect to the Wi-Fi network:

FRONIUS_240.xxxxxx

  • Password: 12345678 (default)

🔹 Step 3: Open Fronius Web Interface

  1. Open a web browser.
  2. Enter the following into the address bar:

http://192.168.250.181


🔹 Step 4: Login and Connect to Your Home Wi-Fi

  1. Login as:
    • User: installer
    • Password: solar (unless changed)
  2. Go to:

Settings > Wi-Fi Settings

  1. Select your home Wi-Fi network.
  2. Enter your Wi-Fi password.
  3. Click Connect.
  4. Wait for confirmation — the inverter should now be connected to your home network.

Step 5: Verify Connection

  • On the inverter screen, go to:

Setup > Network > Status

  • You should see an IP address assigned (not 0.0.0.0).
  • Also check if the inverter is online at solarweb.com

Troubleshooting Tips

  • Use a Wi-Fi extender if the signal is weak.
  • If it doesn’t connect, restart the inverter and try again.
  • You can also use the Fronius Solar.start app for a simpler setup if you prefer mobile.

 


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