Pre-Setup Checklist
Before you start, ensure you have the following:
- Strong Wi-Fi Signal: If your inverter is in a garage or outside, ensure your home Wi-Fi reaches it (at least 2 bars). If not, a Wi-Fi extender may be necessary.
- 2.4GHz Wi-Fi Network: Like most smart devices, the Sunsynk logger does not support 5GHz Wi-Fi.
- Serial Number (S/N): Located on the sticker on the bottom of the silver Wi-Fi dongle.
Method 1: Using the Sunsynk Connect App (Recommended)
This is the easiest method for 90% of users.
- Download & Register: Download Sunsynk Connect from the Google Play Store or Apple App Store. Create an account and verify your email.
- Create a “Plant”: Log in, tap the “+” icon, and select Create Plant. Fill in your location and system size details.
- Add the Logger: Use the app to scan the QR Code on your Wi-Fi dongle.
- Configure Wi-Fi:
- Go to Tools > Wi-Fi Configuration.
- The app will ask for your home Wi-Fi name (SSID) and password.
- Follow the prompts to connect your phone to the logger’s temporary hotspot (usually named EAP-xxxxx).
- Once connected, the app will push your home Wi-Fi credentials to the inverter.
- Verification: The light on the logger should turn from flashing red to a steady green or blue within 2–5 minutes.
Method 2: The “Manual Browser” Method (The Fail-Safe)
If the app keeps saying “Connection Failed,” use this direct method. It bypasses the app’s interface.
- Connect to the Dongle Hotspot: On your smartphone, go to Wi-Fi settings. Look for a network named EAP-xxxxx (the x’s match your logger’s S/N).
- Enter Password: The default password is 12345678.
- Open Browser: Once connected (your phone might say “No Internet,” which is fine), open Chrome or Safari and type 10.10.10.1 into the address bar.
- Login: If prompted for a username and password, use admin / admin.
- Wizard Setup:
- Click on Wizard or Wi-Fi Setting.
- Click Scan to find your home Wi-Fi.
- Select your network, enter your home Wi-Fi password, and click Save/Apply.
- Restart: The logger will reboot and attempt to connect to your router.
Common Troubleshooting Tips
| Issue | Solution |
| Logger has no lights | Ensure it is plugged firmly into the “Direct” or “RS485” port and the two silver screws are tightened. |
| “EAP” Wi-Fi not appearing | Hold the small button on the bottom of the logger for 10 seconds to reset the Wi-Fi module. |
| App shows “Offline” | Check if your router is blocking the logger. You may need to white-list the device in your router’s firewall settings. |
| Data lags or doesn’t update | Sunsynk servers usually refresh every 5 minutes. If you need live data, consider a local monitoring solution like SolarAssistant. |
Pro Tip: Once your system is online, ask your installer to “Share” the plant with you as an Owner. This gives you full rights to change battery discharge settings and timers remotely.
