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Microsoft 365 illustration of a laptop connecting to branch Wi-Fi with a certificate delivered by Microsoft Intune, with Windows 11, EAP-TLS and Microsoft Entra ID labels, under the headline Branch Wi-Fi connects on its own, sign-in by certificate, every exception on record

13 min read

BlockNtlmv1SSO: How Banks, Credit Unions, and Lenders Keep Wi-Fi and VPN Working After the October Update

Justin Kirsch: Mon, Oct 26, 2026

In This Article What the October update changed Why Microsoft blocked MS-CHAPv2 single sign-on Which devices lose automatic Wi-Fi and VPN sign-in...

cybersecurity network Microsoft 365

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