myQ or Wi‑Fi features not working; logic board LED flashes 3 times, pause, then 4 times (3-4) on smart Chamberlain openers.

Safety first: Network troubleshooting does not involve high voltage, but do not open sealed electronic modules.

Steps to fix:

• Check Wi‑Fi signal: Use a smartphone at the opener location to verify a strong Wi‑Fi signal from your router. If weak, move the router or add a Wi‑Fi extender.
• Reset network settings: On many Chamberlain smart openers, press and hold the LEARN button until the LED blinks blue or follow the manual to reset Wi‑Fi. Reconnect using the myQ app.
• Verify myQ account: Ensure your myQ account is active and that the opener is properly added in the app.
• Power cycle opener and router: Unplug the opener and router for 1 minute, then power them back up and retry connection.
• Replace logic board or Wi‑Fi module: If the 3-4 code persists and the opener cannot connect to any network, the integrated Wi‑Fi module or logic board may be defective and require replacement.