Symptoms: Dual-band radio occasionally dropped connections when scanning for better channels.
Fix: Manually set the channel width to 20 MHz in the professional settings (disable auto DFS). A full patch was released in sone127_2021.6.2.
If you are currently running an older sone127 image (v2020.x or earlier), follow these steps to safely migrate to the 2021 branch: sone127 2021