Outlook calendars not syncing - Microsoft Community

my outlook 2016 calendar not sync outlook calendar on onedrive. i'm using office 2016 outlook windows 10; i'm not using windows 10 outlook app. i'm using outlook client comes office 2106 suite. why can't calendars sync? 

***post moved moderator appropriate forum category.***

the reason calendar and mail not syncing account because it is connecting exchangeactivesync.  outlook team has blocked outlook connecting eas. 

to workaround issue following:

1.  open outlook

2.  click file, add account

3.  enter name, email address, , password , click next through wizard

at point account listed twice in outlook.  if had added local data such contacts or calendar items in outlook can copy them on new account added syncing.

finally, you should remove old copy of account the profile

1.  open outlook

2.  click file, account settings, account settings, locate account type microsoft exchange , click on , make default account.

3.  click on old copy of account listed type exchangeactivesync , click remove. 

at point should have new type microsoft exchange account left in profile.

in case you need here topic reconnect process, https://support.office.com/en-us/article/reconnect-outlook-2016-or-outlook-2013-to-outlook-com-for-uninterrupted-email-access-cda1751d-9503-40bf-bf76-e79454ac5eb3?ui=en-us&rs=en-us&ad=us.  put steps above modified version of alternative option listed in topic.

Office / Outlook / Windows 10 / Office 2016