Wallbox shows E16; charging does not start; often associated with smart connectivity features.

Note: Network faults usually do not affect basic charging unless authorization or load management depends on connectivity.

• Check signal strength: Use a smartphone at the wallbox location to verify Wi-Fi signal quality. If weak, consider relocating the router or adding a repeater.
• Re-enter credentials: Using the Mercedes-Benz wallbox app, forget and re-add the Wi-Fi network, ensuring the correct SSID and password.
• Restart router and wallbox: Power-cycle the home router and then the wallbox to clear temporary network issues.
• Firmware update: If possible, update the wallbox firmware via USB or wired connection to address known connectivity bugs.
• Module replacement: If the Wi-Fi module never appears or cannot be detected, it may be defective and require replacement.