One reason your OneNote Notebook is unable to sync is that your Internet connection is poor. To confirm this, we need to check the bandwidth. You can do this by using one of the free Internet speed ...

Some users have said that they are receiving the OneNote sync error 0xE0190193 (403: Forbidden) despite being the owner of the notebook. You can try the following ...

Years back, OneNote 2007 stopped working correctly for me. I managed to transition the notebook to the Windows App that you can use on desktop pc. All worked ok'ish ...