Microsoft has recently identified a significant issue stemming from the June 2025 security updates, which has led to the freezing of the Dynamic Host Configuration Protocol (DHCP) service on certain Windows Server systems. This service plays a crucial role in automating the assignment of IP addresses and other network configurations, thereby simplifying network administration and ensuring reliable IP address management within Windows networks.
Impact on Network Operations
In environments affected by this issue, the DHCP service is unable to correctly apply renewals of unicast IP addresses across network devices. Microsoft acknowledged this problem over the weekend, noting that “the DHCP Server service might intermittently stop responding after installing this security update,” which directly impacts IP renewal for client devices.
The company has provided a list of the Windows versions affected by this issue, along with the specific updates responsible for the disruption. They have assured users that a resolution is in the works and that further information will be shared shortly.
Additional Security Updates
During this month’s Patch Tuesday, Microsoft also addressed another known issue impacting Windows Server systems. This particular problem led to application or service failures, rendering some Windows Server 2025 domain controllers unreachable following restarts. Furthermore, the cumulative updates released in June rectified authentication issues on Windows Server domain controllers that had arisen after the deployment of the April 2025 security updates.
In May, the tech giant issued out-of-band updates to tackle a bug that caused certain Hyper-V virtual machines running Windows 10, Windows 11, and Windows Server to restart or freeze unexpectedly. Just a month prior, emergency updates were rolled out to resolve an issue that prevented Windows containers from launching on Windows Server 2019, Windows Server 2022, and Windows Server 2025 systems. This particular problem was confined to containers operating under Hyper-V isolation mode, which allows multiple containers to run concurrently on a single Windows host within separate virtual machines.
As organizations navigate these challenges, the landscape of patch management continues to evolve. The complexities of traditional patching methods are giving way to more streamlined approaches, enabling IT teams to focus on strategic initiatives rather than being bogged down by time-consuming processes.
