Keeping notes in text format, photo, document or audio, it is very easy to make those who use the application OneNote. It is very complex, it is synchronized on all devices where the same account is authenticated Microsoft, and compared to Evernote, is 100% free. Without advertisements or other obligations and limitations. OneNote does not currently have a version ‘Premium“, and the application is diponible on all devices IOS, macOS, Windows, Android yes in Web version on OneNote.com.
Lately, all more macos users have faced a problem on the OneNote application. Error synchronizing the notes and repeated request for authentication in the application every time you want to open a notebook. Even if the Microsoft account password is entered correctly, the application returns the error:
We are unable to connect right now. Please check your network and try again later.
The operation couldn’t be completed. (kOCConnectionErrorDomain error 14942214.)
Solving solutions would be two. Let us uninstall all the OneNote application on the macos and install it in place, or close each notebook separately and reopen it.
For the second option, the steps are very simple. We go to Notebooks, on the left side, then close each synchronized notebook.

After we close all the notebooks, we reopen them and everything returns to normal.
It seems that the problem appeared following an update made at the end of November 2016.