Cubes Connection Service Deployment Fails on Step 4

Cubes Connection Service failing on step 4 when deploying to AWS. What is causing this Cubes Connection Service deployment to fail?

• Cubes Connection Service

• Cubes

• Hub

• Tyler Deploy

• EERP

• AWS

• Deployment Failure

During a Cubes Connection Service deployment, the Cubes Connection Service deployment (or sub-deployment of Hub) fails with the error:

Unable to get valid response from SSL host header https://<CRM_Custom_ID>tylerapp.tylerhost.net!
Exception calling "GetResponse" with "0" argument(s): "The remote server returned an error: (403) Forbidden.
Unable to get valid response from non-SSL host header http://<CRM_Custom_ID>tylerapp.tylerhost.net!
Exception calling "GetResponse" with "0" argument(s): "The remote server returned an error: (403) Forbidden.

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Summary for Verify Deployment
Deployment Target: SaaSAWS.CPMU<Pod_ID>SAPAP 
INVALID Host Header: <CRM_Custom_ID>.tylerhost.net
VALID Disk Space: D:\
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Contact TSM support for resolution.