Exchange calendar has stopped syncing on MacBook
I have an iMac, MacBook Pro and iPhone.
I use a company exchange (office365) account.
Only the calendar that is part of the exchange account has stopped syncing. The other calendars work.
I have tried several things to get it to work, but I cannot fix it.
It doesn't sync both ways: new entries don't show up on the other devices, the calendar doesn't receive updates.
With iPhone, iMac, everything is in sync.
I've disabled the account, I've tried to do a manual refresh, I've changed the setting from push to automatic refresh every minute. To no avail.
If I try to remove the account, it warns me that it will remove the account from all my computers which use the iCloud keychain (and I don't want that obviously).
Anyone a suggestion?
MacBook Pro, iOS 11.2.6