CRM 2016 and Sharepoint (both on premise) integration - almost there

https://technet.microsoft.com/en-us/library/dn949332.aspx#Set%20up%20server-based%20integration%20with%20Dynamics%20CRM%20and%20SharePoint

Been following the MS guide above. When I get to the "Prepare the SharePoint server for CRM Server authentication" line, I'm having a few issues. When I run New-SPTrustedSecurityTokenIssuer –Name "crm" –IsTrustBroker:$false –MetadataEndpoint https://(servernamehere).(domainhere).com/XrmServices/2015/metadataendpoint.svc/json?orgName=(OrgNameHere) I get an error I can't seem to find anybody else getting an error on.

"New-SPTrustedSecurityTokenIssuer: The remote server returned an error: (400) Bad Request."

Any ideas? If you need more info, just ask! Thank you!