Microsoft’s recent Windows 11 updates KB5063060 and KB5063878 are causing severe network connectivity issues, permanently disabling both Ethernet and Wi-Fi features on office PCs. The updates, affecting Windows 11 Pro systems running build 26100.4351, have left IT professionals struggling with non-functional network adapters and failed troubleshooting attempts. As Microsoft acknowledges the problem, their primary solution of uninstalling updates leaves users choosing between security and connectivity, as deeper system impacts emerge.

Microsoft’s latest Windows 11 updates have unleashed a wave of internet connectivity nightmares, leaving users stranded in a digital desert. Multiple recent updates, including KB5063060 and KB5063878, have triggered widespread network failures across Windows 11 Pro systems, particularly affecting the 24H2 build 26100.4351 and similar versions. Users report immediate connectivity loss post-installation, with both Ethernet and Wi-Fi connections falling victim to this digital disruption. Network troubleshooter scans frequently fail to identify or resolve these widespread issues. Some users found temporary relief by adding public DNS servers like Google’s 8.8.8.8 to their network settings.
The situation reached a critical point around August 12, 2025, when update KB5063878 began severing internet connections faster than a pair of scissors through ethernet cables. What’s particularly concerning is the update’s tendency to completely disable network adapters, leaving users unable to reconnect through conventional means. Even seasoned IT professionals find themselves stumped, as standard troubleshooting steps like network resets and adapter reinitialisations prove futile against this connectivity conundrum.
Windows 11’s latest update wreaks havoc on network connections, leaving even IT experts baffled by its unprecedented system-wide disruption.
The ripple effects extend far beyond basic browsing. Popular applications like Steam, Spotify, and Discord are experiencing the digital equivalent of laryngitis – unable to communicate with their servers despite appearing otherwise healthy. Microsoft’s own features aren’t immune either; the News & Interests feed and Outlook Gmail sync capabilities have become about as reliable as a chocolate teapot.
Perhaps most alarming is the phantom Wi-Fi adapter syndrome – where wireless adapters simply vanish from Device Manager like digital ghosts. This disappearing act forces users to either chain themselves to ethernet cables or resort to external Wi-Fi devices, neither of which offers a permanent solution. The problem shows no favouritism, affecting both fresh Windows 11 installations and upgraded systems with equal prejudice.
The August 2025 security update has particularly wounded the streaming community, introducing severe NDI streaming issues that transform smooth broadcasts into stuttering digital slideshows. Content creators using OBS and NDI Tools find themselves facing an unwanted choice between unstable streams or rolling back crucial security updates – a digital rock and hard place situation.
While Microsoft has acknowledged these issues, their response has been about as swift as a turtle in molasses. The tech giant’s primary suggestion – uninstalling recent updates – feels less like a solution and more like a band-aid on a broken arm.
As of mid-2025, users continue to wait for definitive fixes, trapped between the need for security updates and the desire for functional internet connectivity. For now, Windows 11 users find themselves playing a precarious game of update roulette, never quite knowing if the next installation will be the one that sends their internet connection into the digital void.
Final Thoughts
Microsoft’s recent Windows 11 update has raised significant concerns for enterprise users, particularly regarding essential VPN and network connectivity features. While the company has promised future fixes, businesses must carefully assess the update’s potential impact on their operations before proceeding. In the meantime, organizations may need to explore workarounds or postpone the update to preserve critical internet functionality in their office networks.
PC Repairs North Lakes can assist businesses facing these challenges by providing expert support and solutions to ensure seamless connectivity. Don’t let technology disruptions hinder your operations—get in touch with us today! Click on our contact us page to learn more about how we can help.