Hello, since a while (i am not sure if it is since iOS 9 and OS X El Capitan), if i run a bigger download or if i upload a large file on any of my IOS or MAC OS X devices, the internet is not available anymore on all other devices. Very often it is enough if i download an app -> during the download the internet is not available anymore on all other devices. This behavior i did not have in the past. I have no new router or anything else. A view minutes ago for example i have deactivated iCloud drive on my IMac and then activated it again (had synch problems)........it started do download the files (2,5 GB)......on all other devices the internet was dead...no chance to surf in the web for example.....i have now deactivated iCloud Drive again to stop the download (will do it before we go to bed)..... Any ideas?