Bosch smart EV charger shows E201 and cannot connect to Wi‑Fi or Bosch app services.

Safety first: Network troubleshooting does not require power-off, but do not open the charger while energized.

• Check Wi‑Fi signal: Use a phone near the charger to confirm the home network is visible and has a strong signal. If weak, move the router or add a Wi‑Fi extender.
• Re-enter credentials: Using the Bosch app or web interface, forget the network and re-enter the correct SSID and password. Ensure the network is 2.4 GHz if required by your model.
• Reboot router and charger: Power-cycle the home router, then turn the charger’s breaker OFF for 1 minute and ON again. Attempt reconnection.
• Update firmware: If possible, update the charger firmware via USB or local method per Bosch instructions.
• Module replacement: If E201 persists and other devices connect fine, the internal Wi‑Fi module or communication board may be defective and require replacement.