Hi Folks,
i just found out, that the download was complete (found all *.pkg - Files in a subfolder from "com.apple.MusicApps")
I copied the finishesd *.pkg - Files to another folder, before Garageband starts its own installation.
Then i installed these *.pkg - files by doubleklick and it worked fine. Only 2 files did not work, so it seems they are not ok. These files are:
MAContent10_GB_StereoDrumKitsRnB.pkg
MAContent10_GB_StereoDrumKitsRock.pkg
When i tried to install them a failure message appears. I think the "no internet connection" message is only a mistake from apple. there should be a message "file corupt" or so.
Sorry for my bad english.