Exchange 2010 with Outlook 2007 Install Issues

Installing Exchange 2010, OWA & ECP are working, but when I try to connect Outlook 2007, I get the message that the server is unavailable. Also, when running outlookwebservices test, receiving errors - the underlying connection was closed: could not establish trust relationship for the SSL\TLS secure channel.
Cathy-8933Asked:
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Sikhumbuzo NtsadaSenior IT TechnicianCommented:
Do you have certificates installed already? If not then check your proxy setting if behind a proxy, if yes there is something about the certificate closing the connection.
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AustinComputerLabsCommented:
Are you installing Outlook on a client PC?

Does the NIC config have only the SBS server listed for DNS servers?
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Cathy-8933Author Commented:
Yes, it is client PCs
Yes, it only has itself listed as a DNS server.
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Suliman Abu KharroubIT Consultant Commented:
IS it a domain joined machine ? right click on outlook icon in notification area while pressing shift --> connection status ?

can you browse https sites ? maybe it is an  https problem...
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Sikhumbuzo NtsadaSenior IT TechnicianCommented:
Are you using a 64 bit server?
Did you cubstitute the directories as recommended?

Use /usr/lib64 instead of /usr/lib on x86_64 systems.
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Sikhumbuzo NtsadaSenior IT TechnicianCommented:
please ignore last post.
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Cathy-8933Author Commented:
Looks like the certificate is part of the problem. Thanks!
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