CC File Syncing Lag?

Hi Crew, 

I work on a team of 4 creatives, all using individual .indd files for magazine layouts.

Our magazines (2) usually run about 128 pages each, every month.

We have a proofreader, a production coordinator and two designers all accessing the documents.

We all work in the same office on the same internet speed (high speed).

We are having (increasing) issues with file sync.

Sync says it's up to date on each Mac, we assume we're ok to open pages as the file sync is up to date. Then, the file conflicts begin.

It's like Sync is going to sleep on some of the Macs and only forced to check/sync when a page is opened and saved locally, then sync "wakes up" and conflicted files pop up.

We've restarted, all Macs and repaired all Creative Cloud apps. The next step would be to uninstall and reinstall all Creative Cloud on all machines? 

Is anyone else having the same problems?

Thanks