Charger’s Wi‑Fi connection is unstable or frequently drops, but charging continues normally.

Safety first: Network troubleshooting does not involve mains, but isolate power before opening the housing.

• 1. Check signal strength:
  • Use a smartphone near the charger to check Wi‑Fi signal quality.
  • If weak, consider relocating the router or adding a Wi‑Fi extender.
• 2. Router settings:
  • Ensure the SSID, password, and security type match the charger’s capabilities.
  • Disable overly aggressive band steering or AP isolation that may drop IoT devices.
• 3. Inspect antenna:
  • Open the charger and locate the Wi‑Fi antenna (internal or external).
  • Ensure it is firmly connected to the communication module and not shielded by metal objects.
• 4. Firmware update:
  • Update charger firmware if Heidelberg provides Wi‑Fi stability improvements.
• 5. Replace module if needed:
  • If instability persists, replace the Wi‑Fi communication module.