I'm getting event 23402 in the logs on my SBS 2003 server:
The ISA Server certificate issued to <xxx.xxx.xxx.xx> will expire in less than 28 days. Verify that the correct certificate is selected in the Certificates page of the Web Listener Properties dialog box. If the problem persists renew the certificate with your certification authority (CA).
How do I go about renewing it and fixing this? It was not a certificate created by a third-party, we generated it ourselves.