My iPhone and iPad are failing to sync to the Contacts on my Macbook pro. iTunes shows a menu to allow syncing, but no information is exchanged.
I'm not using iCloud for my contacts on my iPhone or MacBook Pro but I do want to sync them between both devices. All devices are updated to the latest supported versions of iOS and MacOS as of June 26th, 2018.
This is not my question: Is there an alternative to using iCloud for managing contacts?
I have been using iTunes without iCloud for years to sync my phone and the contact list on my computer.
I now believe the problem is between iTunes and the Contacts application on the Macbook Pro. - Changes to groups (add, delete, rename) are not reflected in the iTunes menu for syncing contacts. - Changes to contacts made on my computer do NOT propagate to either my iPad or iPhone. - Changes to contacts made on either my iPad or iPhone propagate to the other device when both have been synced. - Changes to contacts made on either my iPad or iPhone do NOT propagate to the Macbook Pro.