My wordpress multisite is directing subdomains to another website

I have tried to setup wildcard subdomains on transformecommunications.net for a wordpress multisite install. through WP I set up a subdomain called startingpoint.transformecommunications.net but for some reason, the subdomain is redirecting to transforme.ca (another site on my server). I think I’ve done everything right but can’t seem to figure out how or why this is happening. has anyone else experienced this? Is this related to something within WP or is this a server issue? I am running a DV server from Media Temple using CentOS and Plesk.