Well, the message is kind of clear. Exactly the same certificate needs to be installed on all the members of your array. Just be sure you install the cert on the computer account and not the user account Regards Diego R. Pietruszka From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Ellis, John P. Sent: Friday, April 08, 2011 9:40 AM To: isalist@xxxxxxxxxxxxx Subject: [isalist] ISA 2004 EE Certificate issue Hi I have built a test ISA 2004 Enterprise Edition server. The server has been joined to the domain and ISA is installed. We have a wildcard SSL certificate the we need to use on the server (we have already got a up and running a pair of ISA 2004 EE servers that have the SSL certificate installed and working) I have installed the SSL certificated into the Certificate MMC Snap in. The certificates are installed into the Personal Certificates store. When I create a listener in ISA server and select to use SSL I get the following error "To select a certificate, you must install at least one identical certificate on each member server" Can anyone offer any assistance for installing the SSL certificate so ISA recognises it? Thanks John ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.clearswift.com<http://www.clearswift.com> **********************************************************************