PCI Scan failed with SSL certificate with wrong name

I've an IIS server which is hosted around 250 + sites. I am running a PCI scan against one website and its failing with these 2 errors:

Common name of SSL certificate presented on this server is for a different name
Title: SSL certificate with wrong name
Title: SSL self-signed certificate
SSL Certificate for this service ends in an unrecognized self-signed certificate

Both the errors are for RDP. The host name of my IIS server is web.xyz.domain.com and the website against which I run the test is example.com. I understand that hostname and website domain are different, but I can't change the host name to this website domain. Is there any other way to resolve this issue.?

Thanks in advance!!