Yesterday, Microsoft has released Cumulative Update KB 3201845 for Windows 10, bringing version 1607 up to 14393.479, but there are some users who complain that their Wi-Fi connections continuously drop and get the error message “Wi-Fi doesn’t have a valid IP configuration”. The bug may not be caused by the latest patch, because other users started complaining on December 7 about the same problem.
There are many reports of the Wi-Fi problem from Win10 version 1607 PCs, but it seems that there are complaints from Win 7 and 8.1 users, as well, and it is believed that this is an old issue that came back, but nobody knows what triggered it.
Apparently, Wi-Fi disconnects when the PC performs a fast startup, as the IP address is set to 169.x.x.x. Meanwhile, Microsoft acknowledged the problem and a representative posted on the Answers forum that:
“We are looking into reports that some customers are experiencing difficulty connecting to the Internet. We recommend customers restart their PCs, and if needed, visit https://support.microsoft.com/help/10741/windows-10-fix-network-connection-issues. To restart, select the Start button from the taskbar, click the Power button and choose Restart (not Shut down).”
The only solution is to perform a clean restart, so users will have to hold down the Shift key, then click Start, the power icon and finally, Shut Down. It’s important not to let of the Shift key until the device turns off.
On the other hand, KB 3201845 brought fixes for the following issues:
- OLE drag and drop that prevented users from downloading a SharePoint document library as a file;
- Super Floppy-formatted fixed media devices were not recognized by Windows 10 Anniversary Update or accessible in Windows Explorer;
- System Center Configuration Manager (SCCM) client failed installation when a device was re-imaged using the SCCM task sequence;
- Windows Explorer displayed information that was inconsistent with what was stored on the Floppy disk;
- Windows Explorer sometimes didn’t prompt for credentials when a user logged on using a Microsoft account;
- Users couldn’t use directory cache sizes greater than 64 KB etc.
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