Windows 11 updates break localhost (127.0.0.1) HTTP/2 connections

Microsoft' Windows 11 updates have broken the "localhost" functionality, making applications that connect back to 127.0.0.1 ...

Windows 11 wrecks localhost functionality with latest cumulative update

The recent KB5066835 update for Windows 11 broke the operating system's localhost interface, prompting affected users and developers to uninstall the patch in an attempt to ...