CNAME cert

So, i have a satellite server. its called Satellite11.mydomain.com
I've created a CNAME in our DNS just called SATELLITE.mydomain.com to keep it server agnostic, and it will always point to whatever server i have running satellite, etc.
Obviously i've changed our REAL domain to this example.
ANYWAY now that i've done that im getting an SSL error:

"Updating Subscription Management repositories.
Unable to read consumer identity

This system is not registered with an entitlement server. You can use subscription-manager to register.

Error: There are no enabled repositories in "/etc/yum.repos.d", "/etc/yum/repos.d", "/etc/distro.repos.d".
The system has been registered with ID: cd893ffc-0f53-4fd1-9447-ceaad9070be9
The registered system name is: rhel9sandbox.mydomain.com
curl: (60) SSL: no alternative certificate subject name matches target host name 'satellite.mydomain.com'
More details here: https://curl.se/docs/sslcerts.html

curl failed to verify the legitimacy of the server and therefore could not
establish a secure connection to it. To learn more about this situation and
how to fix it, please visit the web page mentioned above."

Im guessing i need to generate a new cert on the Satellite server using alternate names and the documentation is a bit all over the place and confusing. any EASY suggestions? Thanks :)