Charger shows E12; app may report network or cloud communication failure.

Safety first: Network troubleshooting is low‑risk electrically, but do not open the charger while energized unless required and you are competent to do so.

• Check local network: Verify that your home router or switch is powered and that internet access is available from other devices.
• Wi‑Fi signal strength: If the EO charger uses Wi‑Fi, check signal strength at the charger location. Consider moving the router, adding a Wi‑Fi extender, or switching to Ethernet if possible.
• Reboot network equipment: Power cycle your router and any intermediate network devices. Then power cycle the EO charger.
• Verify credentials: Using the EO app or installer interface, confirm that the correct SSID and password are configured. Re‑enter credentials if necessary.
• Inspect communication module: For units with a dedicated communication module (Wi‑Fi/Ethernet/4G), ensure its connectors are firmly seated on the main PCB. Look for antenna damage on wireless models.
• Fallback operation: Many EO chargers can operate in offline mode for basic charging. If E12 persists but local charging works, the communication module or backend service may require EO technical support or module replacement.