Server certificate was missing commonName attribute in subject name

I'm trying to setup an SSL SVN server and when I try to checkout remotely I get the error Server certificate was missing commonName attribute in subject name

I did some googling and from what I can tell I need to add the IP address of the URL I'm accessing to openss.cnf with the commonName attribute like below. I did that but I still get the error.

commonName                      = xx.xxx.xx.xx
commonName_max                  = 64

From serverfault Webnet

• It sounds like a CommonName mismatch with the SSL certificate. Does the CN in your SSL certificate match your server?

  You can run the following to view the SSL certificate:

  openssl x509 -noout -text -in ssl.crt

  Edit

  To generate a snake oil cert, first generate the key:

  openssl genrsa -out host.key 1024

  Now generate the certificate:

  openssl req -new -key host.key -x509 -days 3650 -out host.crt

  openssl will prompt you for the information:

  Country Name (2 letter code) [AU]:
  State or Province Name (full name) [Some-State]:
  Locality Name (eg, city) []:
  Organization Name (eg, company) [Internet Widgits Pty Ltd]:
  Organizational Unit Name (eg, section) []:
  Common Name (eg, YOUR name) []:
  Email Address []:
  

  Common Name is where you specify your server's hostname.

  Webnet : I don't see "CN" in there anywhere... perhaps that's the problem? It's not an official SSL, just something I generated on the server.

  Warner : Check out my edit, that may be the issue.

  Webnet : Can I just modify the certificate now to include a common name rather than re-generate it?

  Warner : That's not possible.
  From Warner