If the wifi network is very slow on your TV, please follow the below methods to do the troubleshooting:
1. Check the wifi speed on your mobile phone. If the wifi speed is very slow on your mobile phone, please check the wifi settings on your wifi router. Usually, you could change the wifi channel on your router.
2. Change another wifi network on the TV to double-check the speed.
3. If the wifi network is only slow on the TV, please try to restore the TV back to the factory default settings.
Press the Settings button on the TV remote, then select Settings --> System --> About --> Reset --> Factory Reset:
4. Please also check if the software of the TV is the latest one or not. If the software is not the latest one, please try to upgrade the software.
Press the Settings button on the TV remote, then select Settings --> System --> About --> System Update --> Network Update:
If the problem can’t be resolved, please feel free to call the TCL hotline for further help.
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