[German]Here is another addendum about issues caused by Windows 10 Update KB4556799. The update was released on May 12, 2020, and appears to cause problems with LTE connections for some users, as Microsoft has acknowledged.
Update KB4556799 for Windows 10
Cumulative Update KB4556799 was released on patchday, May 12, 2020, and raises the OS build to 18362,836 (Windows 10 V1903) and 18363,836 (Windows 10 V1909). The update is available for Windows 10 version 1903, for Windows 10 version 1909, and for Windows Server version 1903 and Windows Server version 1909.
It contains quality improvements but no new operating system features. I reported about the changes and improvements in the blog post Patchday: Windows 10 Updates (May 12, 2020). Microsoft wrote at that time that no isues were known for this update.
But the Update is causing issues
I reported recently in the blog post Windows 10: Audio-/ Install issues with KB4556799, that Microsoft has added the following text to the support article for update KB4556799.
We have seen social media and news reports related to various issues with KB4556799. We are actively engaged with customers who are reporting issues. To date, we have not seen widespread issues reflected in telemetry, support data, or customer feedback channels. We continuously investigate all customer feedback and are closely monitoring this situation.
According to Microsoft, it is probably only isolated reports in social media that point to problems. However, there is no pattern of error or accumulation of problems. When I was on the KB page yesterday, I found no indication of further problems. On May 23, 2020 Microsoft had to add the following note to the list of known problems:
After installing this update on a Windows 10 device with a wireless wide area network (WWAN) LTE modem, reaching the internet might not be possible. However, the Network Connectivity Status Indicator (NCSI) in the notification area might still indicate that you are connected to the internet.
If the KB4556799 update is installed on machines with a WWAN LTE modem, it will no longer be possible to connect to the Internet – even though the status display shows an Internet connection. Microsoft is working on a solution for the bug and will release it as an update on one of the following patchdays.
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