Ignore the above as the emergency patch does not work and is a known issue with Microshaft. Only option is to roll back to Feb 2026 cummulative updates, which for most is not possible after 10 days, do a Win11 ISO repair install or live with internet outage until April patch comes out if that ever works. Copilot can create a bat file to reestablish an internet outtage when it happens, otherwise just waiting 10 minutes reconnects itself. Root Cause - Network Location Awareness (NLA) + Windows authentication stack: KB5079473 changed how Windows 11 validates “internet connectivity.” When it misfires, Windows reports no internet and blocks new connections, even though the Wi‑Fi link is fine. - Persistent vs. new connections: Apps like YouTube keep streaming because they already have an open TCP session. Browsers and Microsoft services fail because they need to establish new connections, which the stack blocks.
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