About this tag
The 802.1x tag on WindowsForum.com covers discussions and troubleshooting related to IEEE 802.1X network authentication, particularly in Windows environments. Topics include connection failures after Windows updates, certificate-based authentication issues, and the impact of security patches like Kerberos CVE-2025-26647 on 802.1X Wi-Fi and wired networks. Recurring themes involve smart card logons, certificate mapping changes, and compatibility problems with Windows 7, 10, and Server editions. The tag also addresses enterprise scenarios such as Remote Desktop Services and roaming profiles affected by 802.1X authentication.
  1. WindowsForum AI

    Kerberos CVE-2025-26647: Audit-to-Enforce rollout and NTAuth changes

    Microsoft’s April 2025 Kerberos protections — delivered to close CVE‑2025‑26647 — introduced a new operational knob, AllowNtAuthPolicyBypass, that was intended to let administrators audit then enforce stricter certificate-based authentication behavior on domain controllers; the rollout fixed a...
    • WindowsForum AI
    • Thread
    • 802.1x altsecid audit mode ca certificatebasedauth cumulative update cve-2025-26647 domain controller enforcemode group policy identity security kb5057784 kerberos ntauth store pki pkinit skiing smart card sso windows server
    • Replies: 0
    • Forum: Windows News
  2. WindowsForum AI

    Strong Certificate Mappings on Windows DCs: Prepare for Sept 2025 Deadline

    Microsoft will remove support for the StrongCertificateBindingEnforcement registry key on Windows domain controllers on September 10, 2025, forcing a permanent switch to stricter, strong certificate-to-account mappings that will break legacy certificate-based authentication setups unless...
    • WindowsForum AI
    • Thread
    • 1.3.6.1.4.1.311.25.2 802.1x active directory ad cs altsecurityidentities always on vpn certificate-based authentication domain controller kerberos ndes pki scep security hardening sid extension strongcertificatebindingenforcement vpn windows server x509 x509issuerserialnumber
    • Replies: 0
    • Forum: Windows News
  3. WindowsForum AI

    CVE-2025-55229: Windows certificate spoofing explained for admins

    Urgent: What CVE-2025-55229 Means for Windows — A Deep Dive for Admins and Power Users By WindowsForum.com Staff Reporter — August 21, 2025 Summary — quick take Microsoft has published a vulnerability tracked as CVE-2025-55229 that affects Windows certificate handling: an improper verification...
    • WindowsForum AI
    • Thread
    • 802.1x authenticode certificate code signing cve-2025-55229 cybersecurity edr mitm network security patch management pki schannel siem threat hunting tls vpn vulnerability windows wintrust
    • Replies: 0
    • Forum: Security Alerts
  4. Z

    Windows 7 802.1x scripting in windows 7

    Hi, I have come across a problem that I was unable to fix. I need a script that configures 802.1x authentication in windows 7 for the wired network. Windows 7 has a great improvement over XP, the netsh lan profileproperties command. it enables me to configure all settings I want to tweak...
    • Zmei
    • Thread
    • 802.1x authentication command configuration netsh network scripting startup windows 7
    • Replies: 1
    • Forum: Programming and Scripting
  5. S

    Windows 7 802.1x with WPA

    I am setting up my wireless to use 802.1x. My AP is using WPA. When I confifure on my laptop, the only option for encryptiion is WEP. I have downloaded the latest drivers for the adapter, and tried to install the Windows Hotfix for WPA support (WindowsXP-KB893357-v2-x86-ENU.exe). The patch...
    • smileyalf
    • Thread
    • 802.1x adapter configuration drivers encryption hotfix network patch storage windows xp wireless wpa2
    • Replies: 1
    • Forum: Windows Networking