Update 10/17/25: Microsoft fixes the bug using a KIR (Known Issue Rollback) update. More information added to end of story. Microsoft's October Windows 11 updates have broken the "localhost" ...
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 ...
ExtremeTech on MSN
Microsoft Races to Fix Windows 11 Update Bug After Reports of App and Hardware Failures
Microsoft's timing is awkward, as it continues to encourage Windows 10 users to upgrade now that official support has ended.
Ensure you have two WSL 2 instances. Start the second WSL instance (using wsl -d <distribution_name>). Attempt to bind any local port on localhost or 127.0.0.1 (for example, by starting a local web ...
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