MC1258087 — Take Action: Out-of-band update released to address an issue signing in to apps with a Microsoft account

Microsoft has identified an issue affecting signing in to apps using a Microsoft account. After installing the March 2026 Windows security update, some users might be unable to sign in to Microsoft apps and services. During sign‑in, users might see a “no internet” error even when the device has a working internet connection. This issue affects only Microsoft account sign‑in scenarios; organizations using Microsoft Entra ID for app authentication are not affected. An out-of-band (OOB) update was...

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