the Samsung device automatically connects to previously saved wireless networks. if automatic connection is not desired, it can be disabled in the respective wireless connection settings. as a result, you need to tap on the found wireless network to establish a connection. if the wireless network is out of range, the connection is disconnected and you need to manually connect again.
- Open the Settings
- Tap on Connections
- Tap on Wi-Fi
- Open the settings of the desired connection
- Enable or disable Auto reconnect