Charger displays E17 and cannot connect to the AMPROAD cloud or app; local charging may still work.

Safety: Network troubleshooting is low electrical risk, but follow normal precautions if opening the unit.

• 1. Check internet connection:
  • Verify that the home router has internet access and that other devices can browse the web.
• 2. Verify Wi‑Fi credentials:
  • Re-enter SSID and password in the AMPROAD app.
  • Ensure the charger is within range of the router.
• 3. Router settings:
  • Ensure that required ports and outbound connections for AMPROAD cloud are not blocked by firewall settings.
• 4. Firmware update:
  • Update the charger’s communication firmware if a local update method is available.
• 5. Replace communication module: If E17 persists and the module does not connect to any network, replace the AMPROAD communication module.