Charger shows E12; the Wi-Fi or network icon may be flashing; charging may still work but with limited features.

Safety first: Network issues are low-voltage, but do not open the charger unless necessary. Charging may still be safe if only connectivity is affected.

• Check Wi-Fi signal: Use a phone near the EVgo charger to verify signal strength. If weak, move the router or add a Wi-Fi extender.
• Reconfigure network: Using the EVgo app or local web interface (if available), re-enter Wi-Fi SSID and password. Ensure the network is 2.4 GHz if the charger does not support 5 GHz.
• Router settings: Confirm that the router is not blocking outbound connections from the charger’s MAC address. Disable overly strict firewalls or parental controls for the charger.
• Reboot charger and router: Power-cycle both devices and check if E12 clears.

If E12 persists and other devices work fine on the same network, the EVgo Wi-Fi module or communication board may be defective and require replacement.