IOS 10.2.1 Backup and restore backup
Sync Ipads with Itunes on Computer : it backs up then when I look at Summary it tells me this ipad has never been backed up to this computer?


iTunes does not automatically back up every time you sync, so maybe it didn't do a backup just then? If you press the button to make a backup, does it backup successfully and change the last backup date?

An article I wrote awhile ago about syncing vs backing up, for reference:
https://deciphertools.com/blog/2015_01_27_itunes_sync_vs_backup_ensure_data/