Problems with Tuya Zigbee Devices: Sudden Pairing Failures and Cloud Services

Main issue: Authorization errors when adding devices

Many users of Tuya Zigbee devices recently face a frustrating situation: devices that worked previously can suddenly no longer be added to the Tuya or SmartLife apps. Instead of successful pairing, users encounter an error message: “The current device is not authorized and cannot be added”.

This issue is not caused by the user or seller—it’s entirely on the manufacturer and Tuya’s licensing system.

Cause: Licensing fees and device authorization

The root of these problems is the high licensing fees manufacturers must pay to Tuya for use of their cloud platform.

Tuya licensing costs

• TuyaOpen License: $0.70 USD per device for basic IoT connectivity

• Annual license: starting at $12,500 USD for Premium Edition depending on device volume

• Monthly API fees: up to $1,947/month for high load

Why devices become incompatible

• Manufacturer didn’t originally buy the license

• License expired or wasn’t renewed

• The device count limit was exceeded

• Tuya changed licensing rules

Tuya support confirms: “The problem is caused because the developer has not purchased the Tuya Cloud authorization code...if the developer does not buy the code, we cannot remove the restriction for individual devices.”

Risks of cloud services

Specific risks with Chinese cloud services

1. Dependence on overseas servers: All data flows through China

2. Service instability: Frequent outages and connection problems

3. Data safety concerns: Unclear control over private data

4. Licensing uncertainty: Manufacturer may stop payments at any time, rendering devices unusable

Real-world impacts

• Random device disconnects from apps

• Slower response times due to remote commands

• App conflicts: if Tuya/SmartLife is open, integrations like Home Assistant can’t access Tuya cloud

• Outdated data and slow synchronization

Impact on users and sellers

For end-users

• Sudden device failure without warning

• No guarantee new devices will work

• Financial loss as smart investments become useless

For sellers

• No control over licensing status

• Warranty issues and refund demands

• Reputational risks from negative reviews about problems outside their control

Solution: Local control as a sustainable alternative

Home Assistant as the answer

The best solution is switching to local smart home control platforms like Home Assistant, with direct device integrations.

Advantages of local control:

• No dependence on cloud or manufacturer payments

• Instant command response

• Total data privacy

• Long-term reliable operation

Recommended alternatives:

• Zigbee2MQTT (local Zigbee control)

• ZHA

• Matter/Thread (new cross-platform standards)

• Local Tuya: Local connection and Tuya Wi-Fi devices, which can then be blocked from the internet and controlled only locally via Home Assistant.

Migration steps:

1. Acquire a Zigbee coordinator

2. Install Home Assistant on a Raspberry Pi or mini-PC

3. Pair devices locally

4. Avoid buying cloud-dependent Tuya devices

Conclusion

Tuya Zigbee device problems are systemic and will likely become more common. High licensing costs force manufacturers to cut corners, resulting in non-working devices for consumers.

The only sustainable future is switching to local control platforms like Home Assistant, offering independence, reliability, security, and real long-term value for smart home investments.