Error on Client after trying to push agent: LDISCN32: Failed to resolve the HOST Name

I am getting the above error on my agents when I try to do the Inventory Scan.  The Client has the correct permissions and there is a DNS record for the Core Server. 

There is also another error I get that says Violations:  Policy Update.

The Scheduled Task puts the workstation in the successful container and I have rebooted the clients computer.

Thanks

Cathy