Recently installed a 2nd CAS server at another site. Exported certificate from existing CAS cas and installed it on the 2nd CAS server. followed all steps to including enabling and assigning services to the certificate. Issue is that when some users connect to outlook using VPN, they get a certificate error. The error shows the server name of the new CAS server as not having a valid certificate. I have verified all URL on the 2nd CAS match the names in the certificate (mail.company.com, autodiscover.company.com, outlook.company.com) . Am I missing something?