Networking problems after the October 2026 Windows update? NTLM might be to blame
October 2026 Windows update blocks NTLMv1 single sign-on by default, which can break Wi-Fi, Ethernet, and VPN logins.
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Product
Windows 11 24H2
- Mentions · 7d0
- Mentions · 30d1
- All mentions3
- First seenSep 17, 2026
- Last mentioned26d ago
Timeline
3 articles · newest firstWindows 11 24H2 Home and Pro reach end of support in October
Microsoft ends security updates for Windows 11 24H2 Home and Pro on October 13, 2026, urging users to upgrade to Windows 11 25H2.
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Microsoft shares workaround for Windows domain login issues
Microsoft confirms September 2026 Windows updates trigger domain trust failures via Machine Identity Isolation and shares a workaround for Windows 11 enterprises.
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Appears with
- Microsoftvendor · 3
- Windows 11 25H2product · 2
- Windows Server 2025product · 2
- Microsoftorganization · 1
- Windows 11 26H1product · 1
- Remote Desktop Servicesproduct · 1
- Windows 10 Enterprise LTSB 2016product · 1
- Windows Server 2022product · 1
- Intunevendor · 1
- Hyper-Vproduct · 1
- Windowsproduct · 1
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