You can do this by opening your internet browser and going to If the page loads, your internet connection is working. Restore previous purchase for Office for Mac Can't activate Office after installation.Ĭheck to make sure your internet is working on the Mac you're trying to install on. Unknown error' or 'clock error' when you activate Outlook 2016 for Mac
'You need to activate Office for Mac within X days' after activating.
