Thank you for the detailed response. I have already submitted Feedback Assistant reports with sysdiagnose attached. Feedback IDs: FB23196632 (previous investigation) FB23366087 (macOS 27 Beta, build 26A5368g) Your comment regarding the Wi-Fi Country Code / regulatory domain is particularly interesting, as this is one area I have not investigated yet. Thank you for taking the time to review the issue and for pointing me in a new direction.