Microsoft confirmed that Windows 11 KB5066835 breaks localhost (127.0.0.1) HTTP/2 connections, which means locally hosted apps can no longer connect to your network, but that’s not the only problem.

Windows updates usually bring security enhancements, bug fixes and new features. Sometimes, though, these updates can also break parts of the operating system. Unfortunately, some updates for ...

Microsoft has fixed a known issue breaking HTTP/2 localhost (127.0.0.1) connections and IIS websites after installing recent Windows security updates. This bug affects both Windows 11 and Windows ...

The problem first surfaced on Microsoft's own support forums and quickly spread to Stack Overflow and Server Fault after the October 2025 cumulative update (KB5066835) landed, which appears to have ...

XAMPP is a free and open-source tool that is basically used to create a local copy of the site on your computer for testing purposes. This lightweight, cross-platform application makes it quite simple ...

If you encounter the Localhost refused to connect error message when running any web server on your local Windows 11/10 computer, then this post is intended to help ...

Learn step-by-step how to set up a self-signed SSL certificate on localhost using XAMPP, Apache and OpenSSL. You'll be ready in a few minutes. [VIDEO] ...

Abstract: XAMPP is an acronym that stands for Cross-Platform, Apache, MySQL, PHP, and Perl, with the Ps standing for PHP and Perl, respectively. This article investigates the various helpful assets ...