Agent not contacting new server in side-by-side

I am upgrading to 2017.3 from 9.6sp2 via side-by-side migration.

Side by side migration from LANDESK Management Suite 9.6 to 2016 or 2016 to 2016.3 

I've followed the steps in this article and installed a new agent (/f) from the new LDLogon directory to an existing client, but when I run a test inventory scan, the client tries to contact the original server (which remains online) instead of the new one.  I'm trying to figure out why it won't contact the new server.

Thanks!!!

Willie