Subdomain Install on Shared Hosting

I am attempting to install Xibo 2.1.1 (as of now, latest release) on a subdomain of a shared hosting web account. (I currently have Xibo 1.7.9 running just fine, but I have other WordPress website installs that are warning about out of date PHP versions, due to 1.7.9 PHP support being limited to PHP 5.6.)

I am installing manually, following the standard install process, have my subdomain created and have redirected the Document root to “/subdomain/web”.

From here, when I attempt to proceed with the install by going to “subdomain.domain.com”, instead of beginning the install wizard to check for server compatilibity, the subdomain for the Xibo install redirects to the primary domain instead.

My shared web hosting is through HostGator, and I’m using the standard CPanel tools to create and modify the subdomain as necessary, etc.

Anyone have any insight as to why this is happening?