Good Morning TKnTexas,
This issue can be caused by running a Antivirus / Web filter on your machine.
As the Deployment Wizard is a Web Based running either one of these can block the deployment.
If you have one installed I would recommend disabling while installing FileMaker Server 15 as per the FileMaker Server Getting Started Guide
Something Ned I have to do a full uninstall and reinstall because the DA hangs up.