Recently, some users of Windows 10 Version 1670 suddenly found that they couldn’t connect to the Internet via a Wi-Fi connection. The immediate suspect was a cumulative update released Dec. 9.
The solution for the problem — a system restart — is a reminder of how you can easily access some of Win10’s most important troubleshooting tools.
What caused Windows 10 Wi-Fi connections to fail?
A bit of Windows-updating mystery and confusion developed this past week. On Dec. 9, Microsoft released cumulative update KB 3201845 for Win10 Version 1607 (aka Anniversary Update) that included various fixes. About the same time, some users of that OS reported problems connecting to networks via Wi-Fi. The early assumption was that something in KB 3201845 broke wireless connections. However, that assumption was apparently wrong — nor was the update the solution.
A Microsoft Community moderator noted on Dec. 8 that the company was investigating reports of Wi-Fi-connection issues. Annoyingly, there’s been no follow-up information in the post. But Microsoft did take the extraordinary step of putting up a banner on its support pages recommending that users restart their systems to clear the problem (see Figure 1; red highlight ours).
Apparently, some users are having difficulty getting the restart fix to work, possibly due to Win10’s Fast Startup function. A series of posts on Woody Leonhard’s AskWoody site give some observations and alternate solutions.
Update: Adding to the mystery, late this morning (Dec. 12), Microsoft took down the information page for cumulative update KB 3201845, replacing it with an MS “This page doesn’t exist” notification. Some hours later, the page was restored. But we still don’t know what caused the Wi-Fi-connection problem.
Using Restart to access advanced troubleshooting
The above use of Restart is a good reminder that it’s a fast way to access some of Windows 10’s advanced troubleshooting and startup tools. (Note: Before using any of the following options, be sure to close any open applications and documents. Most of the tools will restart Win10 into a limited version of the OS.)