Cannot use the Tapo/Kasa app to control my smart devices

Released On: 2018-11-05 12:25:04Last update time: 2024-04-04 08:38:16

Generally, you can control the Tapo/Kasa device via the app both locally and remotely once set it up successfully. "Locally" refers to when your phone is connected to the same Wi-Fi network as your Tapo/Kasa device. On the other hand, "remotely" refers to when your phone is connected to a different network.


If you are unable to control the smart device through the app, please refer to the following steps to troubleshoot.


Case 1. Cannot use the Tapo/Kasa app to control the smart devices in the local network

1. Check the LED status on the smart device as per User Guide. If the LED status shows the device is not working properly, please reset the device and re-configure it.


2. If the smart device was working fine before, confirm if there are any changes in the router or the network environment.


3. Go to the “Device Settings” page on the Tapo/ Kasa app to check the signal strength of the Tapo/ Kasa device.
If the signal strength ranges from -70dBm to -40dBm, it means the smart device has a good signal from the router.
If the signal strength is less than -70dBm, it means the signal strength from the router is too weak. In this case, please move the smart device closer to your router for a try.


4. To upgrade the smart device to the latest firmware, you may refer to the instructions:
On the Kasa app: How to update firmware of Kasa smart devices?
On the Tapo app: How to update the firmware of the Tapo&Kasa devices on the Tapo App?


Case 2. Cannot use the Tapo/Kasa app to control the smart devices remotely

1. Make sure you can control the smart device in the local network. If you are unable to control the smart device in the local network, please refer to Case 1 to troubleshoot.


2. To upgrade the smart device to the latest firmware, you may refer to the instructions:
On the Kasa app: How to update firmware of Kasa smart devices?
On the Tapo app: How to update the firmware of the Tapo&Kasa devices on the Tapo App?


3. Try to change the DNS server to 8.8.8.8 on your home modem/router.


4. Ensure the router is working properly. You can connect your phone or laptop to the Wi-Fi network of your router, then check if it has internet access.


5. Try to disable firewall settings if there is one on your home router, then reboot the router.


Case 3. Cannot control the smart devices through the physical button

If you cannot control your smart device through the physical button, it may be a wiring issue or the device may be defective. It's suggested to check the wiring first.


For detailed troubleshooting tips, please refer to the below instructions:
Cannot use the Tapo/Kasa app to control my smart devices


If the problem remains, you can start a new thread to post your issue with the following information on the community for further assistance. 
1. The model number, firmware, and hardware version of your smart device.
2. The problem phenomenon.
3. The troubleshooting you have done and the test results of the above steps.

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