Windows 11 25H2 Upgrade Silently Wipes 802.1X Wired Authentication Profiles

A Windows 11 25H2 upgrade can silently wipe 802.1X wired authentication profiles.

A Windows 11 25H2 upgrade can silently wipe 802.1X wired authentication profiles, a field report finds.

  • The upgrade removes existing 802.1X wired authentication profiles.
  • The change is silent, so affected devices may lose network access unexpectedly.
  • Teams should validate 802.1X profiles after rolling out the upgrade.

This briefing is part of SecureW2’s Cybersecurity Intelligence series, which tracks identity, certificate, and network-security events for the teams who have to respond to them.