It's boring when it works!

After an update of Windows 10 I had problems with the DNS. All name resolutions worked sporadically only a short time after restart. The solution is simple. You start a shell as administrator and do the following:

netsh int ip reset [ENTER]
netsh winsock reset [ENTER]
ipconfig /flushdns [ENTER]

Then restart once and the DNS queries should work again.