Your connection was interrupted.
A network change was detected.
ERR_NETWORK_CHANGED
This started to happen on my Chrome/Brave Browser just after I updated my MacOS to developer beta (Version 15.0 Beta (24A5279h)).
ERR_NETWORK_CHANGED
Have you raised a Feedback report? If not, please do so at https://www.apple.com/feedback/ then post the FB number here.