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- Windows 11 24H2: 802. 1X Authentication failure compared to Windows 10
802 1X authentication fails in Windows 11 24H2, while the same configuration works correctly in Windows 10 This issue persists despite applying all necessary registry settings, manually loading EAP-GTC modules, and ensuring that authentication certificates meet security requirements
- Fixing 802. 1X Authentication Failure After Upgrading to Windows 11 24H2
First, the bug is real and reproducible: wired 802 1X loops endlessly in Windows 11 24H2 under both Microsoft and third‑party EAP methods Second, no registry switch, Credential Guard toggle or Group Policy tweak fully resolves it today
- Solved: Windows 11 machines fail to complete EAP-TLS authentication . . .
Surprisingly same windows 11 machines EAP-TLS authentication works fine with Aruba Clear pass but fails in Cisco ISE Cisco TAC has advised to open case with Microsoft too
- EAP-TLS Auth issues with Windows 11 | Security - Airheads Community
My Windows 10 client works perfectly and does machine and user authentication The Windows 11 client fails machine auth with error 215 'EAP-TLS: fatal alert by client - access denied'
- Windows 11 24H2 802. 1X Authentication not working
PEAP (account password based auth) isn't supported by Win11 anymore, is it possible you had a work-around in place that has stopped working with the upgrade?
- 802. 1x authentication broken after Windows 11 upgrade : r sysadmin - Reddit
Restart the laptop, delete the computer from the AD and then re-add it, remove and add the RADIUS roles from the computer as well as manually importing the certificates from the RootCA to the laptop I have also tried manually removing them and them adding them back again
- 802. 1x authentication failed on Windows 11 | Microsoft Community Hub
For windows11, the 802 1x authentication is enabled on the network adapter and peap-mschapv2 authentication is selected However, the identity verification fails
- 802. 1X authentication failure with workstations on Windows 11
This NIC driver update wiped out the 802 1X machine authentication settings that we applied to the "ethernet" connection via Group Policy Once the settings were wiped, the machine would get kicked off the network, thus group policy couldn't enforce the 802 1X configuration
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