Experiencing connectivity issues with your Samsung Q60BD QLED 4K Smart TV? The network WLAN client, part number BN59-01403A, might be the culprit. This genuine Samsung component is designed for various sizes of the Q60BD series, including 43-inch, 50-inch, 55-inch, 60-inch, and 70-inch models. A faulty WLAN client can lead to inconsistent Wi-Fi and Bluetooth connections, affecting your overall viewing experience. Before purchasing, please check your TV's model number for compatibility.