LG ThinQ: Troubleshooting 'Invalid Credentials' After... | digitalhomefaults.org

Technical Background:

The LG ThinQ system uses a cloud-based authentication model. The app communicates with LG's servers to verify user credentials. Upon a password reset, the new credentials must be propagated to both the app and the appliance. This process involves secure token exchange over HTTPS. The appliance stores a local copy of the authentication token for subsequent connections. Communication utilizes Wi-Fi (2.4 GHz or 5 GHz) according to IEEE 802.11 a/b/g/n standards. Power consumption during authentication peaks at approximately 5W.

Symptoms:

The LG ThinQ app displays 'Invalid Credentials' upon login after a successful password reset via the app or website. The appliance remains offline and inaccessible through the app. The Wi-Fi LED indicator on the appliance may blink slowly or remain off. Error logs within the app show a '401 Unauthorized' or 'Authentication Failed' response from the LG server.

Possible Causes:

Stale credentials cached in the LG ThinQ app.
Time synchronization issues between the appliance and the LG server (NTP).
Temporary outage of the LG authentication server.
Network connectivity problems (DNS resolution failure, firewall blocking).
Incorrect password entered (typos or keyboard layout issues).
Firmware incompatibility between the appliance and the updated ThinQ app.

Solution:

1

Force close the LG ThinQ app and restart it.
2

Clear the app cache and data in your mobile device's settings (Android) or reinstall the app (iOS).
3

Power cycle the LG appliance by unplugging it for 60 seconds and then plugging it back in.
4

Ensure your home Wi-Fi network is functioning correctly. Verify internet connectivity on other devices. Check Bell Giga Hub or Rogers Ignite router settings for potential blocking of LG servers (outbound HTTPS traffic on port 443).
5

Verify the date and time settings on your mobile device are synchronized automatically.
6

Log in to the LG website (lg.com/ca) and verify your new password works there. If not, reset the password again.
7

If the issue persists, contact LG Canada customer support for assistance.

Safety Warning:

Never share your LG ThinQ account credentials with unauthorized individuals. Be wary of phishing attempts that may try to steal your login information. Avoid using public Wi-Fi networks to access your smart home devices. Ensure the appliance is properly grounded to prevent electrical hazards. Do not attempt to disassemble the appliance unless you are a qualified technician.

Prevention:

- Regularly update the LG ThinQ app and appliance firmware to the latest versions (OTA updates). - Use a strong and unique password for your LG account. - Enable two-factor authentication (2FA) for added security. - Periodically check the appliance's Wi-Fi connection to ensure it remains stable. - If using a static IP address for the appliance, ensure it is within the correct subnet and has a valid DNS server configured.

Expert Tip:

Before resetting your password, try logging in with your old password once more. Sometimes, the app retains the old credentials in memory even after a reset is initiated, and this might trigger the successful credential update from the backend after a couple of login attempts.

Frequently Asked Questions

•What ports should be opened on my firewall for LG ThinQ?

LG ThinQ appliances typically use HTTPS (port 443) for outbound communication. Ensure your firewall allows outbound traffic on this port to LG's servers. Some appliances may also use MQTT (ports 1883 or 8883) for real-time communication.

•How do I update the firmware on my LG appliance?

Firmware updates are typically performed automatically over-the-air (OTA) through the LG ThinQ app. The app will notify you when a new update is available. Ensure the appliance is connected to Wi-Fi and has sufficient power during the update process. Do not unplug the appliance during the update.

•Can I control my LG appliance if the internet is down?

Most LG ThinQ appliances rely on cloud connectivity for full functionality. If the internet is down, you may lose remote control and some smart features. However, basic appliance functions (e.g., washing, drying) should still operate through the physical control panel on the appliance itself. Consider local control options if available for your specific LG appliance model.

LG ThinQ: Troubleshooting 'Invalid Credentials' After Password Reset

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

Frequently Asked Questions

•What ports should be opened on my firewall for LG ThinQ?

•How do I update the firmware on my LG appliance?

•Can I control my LG appliance if the internet is down?

Related Questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: