User Syncing issues

I was setting up user syncing where the users created on server trickle down to the JACE’s. Simple enough in theory and I was able to get it to work.

However, I notices that when I changed the password for the account that connected the server and JACE, the connection was cut and the synced users were gone!.

We have a separate user for Server to JACE connections, so password changes aren’t a big issue. But if the jace is down, would the users still be deleted? can user deletion be prevented?