Method 1: Restart the Bluetooth connection

It happens that you have successfully connected to a Bluetooth device, but have remaining issue on the connection. In this situation, you can turn Bluetooth ON or OFF.
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To do this, click on the Bluetooth icon in the quick settings of your device or from Settings> Bluetooth, then enable / disable it.
You can try this method for a few seconds and see if a possible improvement of the Bluetooth connection has been found.

Method 2: Clearing the Bluetooth application cache

Clearing the Bluetooth cache can avoid potential connection issues.
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To clear the Bluetooth application cache, follow the steps below:
1.        First, go to Phone Settings> Applications and Notifications> Application Information
2.        After that, click on the 3-point overflow menu and press Show.
3.        Now scroll down and click on "Bluetooth".
4.        Here, press "Storage" and select "Clear Cache".
5.        Activate the phone's Bluetooth service by double-clicking the icon in the quick settings.
Turn your light bulb off and then on electrically.

Method 3: Restart your device

Try to reboot your device every time you encounter such a problem.
This may solve the problem as several factors can lead to such undesirable circumstances.