I am trying to get my computer to sign on to 64-bit OneNote 2016 on Win 7.
While the popup window shows up fine, when I input my credentials and although I get no error messages, I get another identical popup asking me to sign in.
I have tried this for two separate accounts both of which sign in fine on the OneNote website on my browsers. I have also tried uninstalling and reinstalling. I can't try the 32-bit version as I have 64-bit Office installed.
All "official" answers on MS forums seem to be vague and unhelpful. The only real conclusion is that it's only a OneNote 2016 problem, so if anyone has a link to an earlier version I'd also take that.