Windows 10 was recently granted a new cumulative update from Microsoft, known as KB4515384.
This patch released on September 10 and was claimed by the American tech giant to fix several issues with the popular operating system – including a remedy for a recent high CPU problem related to Cortana.
When it initially debuted the patch, Microsoft said there were no known issues with KB4515384.
However, after downloading and installing it, some users took to the Redmond-based company’s community forum and Reddit to declare the firmware was causing Wi-Fi complications.
More specifically, fans running specific Wi-Fi adaptors on their machine insisted they were unable to connect to networks at all.
Discussing the matter, one user said: “KB4515384 broke my Intel NIC. It kept reporting ‘disconnected’.
“I downloaded the Intel 220.127.116.11 drivers, and did a fresh install, but no luck…still disabled. I uninstalled the KB update, and I’m back in business.
“I’m running Intel driver 18.104.22.168 successfully pre-update, if that helps anyone. Now, I sit and wait and hope Microsoft fixes!”
In response to the Reddit thread, a number of other fans insisted they were experiencing similar difficulties.
Microsoft has since updated an online post about its KB4515384 update to confirm “certain devices” with “some Intel and Broadcom Wi-Fi adaptors” will be unable to connect to Wi-Fi after installing it.
The American tech giant said: “Microsoft and NEC have found incompatibility issues with Intel Centrino 6205/6235 and Broadcom 802.11ac Wi-Fi cards when running Windows 10, version 1903 on specific models of NEC devices.
“If these devices are updated to Windows 10, version 1903, they will no longer be able to use any Wi-Fi connections. The Wi-Fi driver may have a yellow exclamation point in device manager. The task tray icon for networking may show the icon for no internet and Network & Internet settings may not show any Wi-Fi networks.”
Microsoft has also provided a workaround for users experiencing Wi-Fi problems of this nature.
The firm said fans can “mitigate” such issues by disabling then re-enabling their Wi-Fi adaptor in Device Manager.
It was noted after this action has been completed, Wi-Fi should work after a reboot.
Alternatively, as noted by some fans on Reddit, users also have the option of uninstalling the KB4515384 update to avoid problems, too.