It is displayed no network connection when I sign in onenote on iphone

Hi,

I suggest you post this issue to OneNote for iPhone or iPad forum:

https://answers.microsoft.com/en-us/msoffice/forum/msoffice_onenote-msoffice_unknown-mso_OPiOS

The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.

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