Microsoft fixes VPN failures caused by April Windows updates

Microsoft fixed a known issue where April 2024 Windows updates caused VPN connection failures across Windows 10, Windows 11, and Windows Server editions; the problems were resolved by cumulative updates released in the May 2024 Patch Tuesday, and Microsoft provided mitigation steps (including uninstalling the April LCUs) and support channels. The report also highlights fixes for domain controller reboots and NTLM authentication failures, and notes a zero-day that was actively exploited to deliver QakBot and other malware to unpatched systems.