On December 9, Microsoft has released cumulative update KB 3201845, but immediately after that, users in Europe started reporting that DHCP was broken and they were kicked offline, being forced to reboot their systems in order to solve Internet connectivity issues.
Microsoft has acknowledged the problem and in short time it released KB3206632, which got rid of the bug.
The new update has “Addressed a service crash in CDPSVC [Connected Devices Platform Service] that in some situations could lead to the machine not being able to acquire an IP address.” Every network is automatically assigned an IP by the DHCP (Dynamic Host Configuration Protocol) technology and instead of manually assigning IP addresses, many network administrators use DHCP to do their job.
The previous Windows 10 update broke the ability to configure DHCP, which kicked users offline and while for some rebooting the system solved the issue, others found other solutions to resolve the issue. For example, some users said that they typed in the following commands: “ipconfig /release” and “ipconfig /renew”, but others had to use a separate set of commands, like “netsh int ip reset” followed by “ipconfig /flushdns”. By using this combination, the affected system was able to reconnect to the internet, and users downloaded the appropriate patch.
From time to time, new Windows 10 updates come with bugs that are doing a lot of damage to devices, bricking systems, causing crashes, breaking Internet connectivity, while hackers take advantage of vulnerabilities to launch malware campaigns.
In order to avoid inconveniences, Microsoft recommends Insiders in the Fast Ring / Slow Ring who receive new builds to test them out within a virtual machine when possible, and not to install them on their primary system, because certain issues can cause irreparable harm and all data saved on the device will be lost.
The good news is that the latest Windows 10 Build 14393.576 released for PCs and Mobile public users has addressed not only the service crash in CDPSVC, but also many other issues, and you can check out the change-log here.