Outlook is unable to connect to the proxy server

Posted on 2013-10-30
Last Modified: 2013-10-30
I have exchange server 2013 installed with Active Directory CA for the certificate. Windows XP running Outlook 2010 conncet without problems after applying Office sp2. All my windows 7 running office 2010 machines fail to connect even after applying the office Sp2. The following message is given:

Error message
There is a problem with the proxy server's security certificate.
The name on the security certificate is invalid or does not match the name of the target site <domain URL>
Outlook is unable to connect to the proxy server (Error Code 0)
Question by:mct_1_pazed
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Expert Comment

ID: 39611723
Check the system services and ensure they are all running properly on the server...
This service: system attendant service may be one to look for...Some others report that may be the issue and it resolved their issue...
 I have seen others have the issue because of services not starting.

Accepted Solution

mebaby333 earned 500 total points
ID: 39611728
This article may help you as well..

Author Comment

ID: 39611815
But why does this only occur on Windows 7 machines?

Expert Comment

ID: 39612820
It depends on several things....
Did you just setup the server? or was it already functioning and you came in and it seemingly happened at random?

Author Comment

ID: 39613306
I setup a server from scratch - Installed the Windows server 2012 and Exchange 2013. Microsoft Windows Xp works very well but windows 7 clients cannot just connect to exchange.

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