Domain Controller
Microsoft releases emergency updates to fix Windows Server issues
Microsoft has released out-of-band (OOB) updates to fix issues affecting Windows Server systems after installing the April 2026 security updates. As Microsoft confirmed last week, some admins may experience failures when installing the KB5082063 security update on Windows Server 2025 devices. Additionally, this month’s Patch Tuesday cumulative updates are causing some Windows servers with domain controller […]
Microsoft: Some Windows servers enter reboot loops after April patches
Microsoft has confirmed that some Windows domain controllers are entering restart loops due to Local Security Authority Subsystem Service (LSASS) crashes after installing the April 2026 security updates. The company also warned that Windows admins may encounter this issue when setting up new domain controllers, or even on existing ones, if the server processes authentication […]
Microsoft fixes unreachable Windows Server domain controllers
Microsoft has resolved a known issue that caused some Windows Server 2025 domain controllers to become unreachable after a restart and triggered app or service failures. As Redmond explained when it acknowledged the bug in April, servers loading the standard firewall profile instead of the domain firewall one after rebooting will have issues managing network traffic correctly. […]
Microsoft fixes Windows Server auth issues caused by April updates
Microsoft has fixed a known issue causing authentication problems on Windows Server domain controllers after installing the April 2025 security updates. Platforms affected by these problems include Windows Server 2016, Windows Server 2019, Windows Server 2022, and the latest version, Windows Server 2025. However, as Microsoft further explained when it acknowledged this known issue in early […]
Microsoft: April updates cause Windows Server auth issues
Microsoft says the April 2025 security updates are causing authentication issues on some Windows Server 2025 domain controllers. The list of impacted platforms includes Windows Server 2016, Windows Server 2019, Windows Server 2022, and the latest version, Windows Server 2025. However, as the company further explained, home users are unlikely to be affected by this […]
Microsoft: Windows Server 2025 restarts break connectivity on some DCs
Microsoft warned IT admins that some Windows Server 2025 domain controllers (DCs) might become inaccessible after a restart, causing apps and services to fail or remain unreachable. As the company explained, this is caused by the servers loading the standard firewall profile instead of the domain firewall ones after rebooting. “Windows Server 2025 domain controllers (such […]