Once again I can't sync from my Windows OneNote to the OneNote Online version, and thus to my Android OneNote. I get the above error - 0x80072EFF, plus a 0xE4010641 error when trying to sync. I have a good internet connection. All my Notebooks show "not connected". But when I click on the Shared Notebook link, it opens up the online version. I really don't want to copy and create new notebooks. There has to be a better solution MS.