@Tcipl Based on your description, I'm guessing it's due to signal interference and network congestion. This is because the 2.4GHz band is commonly used, many devices (such as wireless phones, Bluetooth devices, microwave ovens, etc.) are operating in this band, and compared to the 5GHz band, it has fewer channels, which can lead to band congestion and strong signal interference. You can try changing the channel to 1/6/11 to reduce interference or simply replace it with a 5GHz device.