Charger shows E13 and refuses to start charging when connected to networked services.

Safety first: Network configuration changes do not require opening the charger; avoid internal work unless necessary.

• Check local charging mode: If possible, switch the charger to local/manual mode to test if it can charge without network authorization.
• Verify network connection: Check Wi-Fi signal strength or Ethernet link status. Restart the router and charger.
• Re-enter credentials: Using the app or web interface, confirm SSID, password, and any OCPP server URLs or tokens are correct.
• Update authorization: Refresh RFID cards or user accounts in the backend system if applicable.

If E13 persists with a known-good network and correct settings, the internal communication module may be defective and require replacement.