Hi, I'm running Windows 7 Ultimate TRM, with Office 2007 Pro SP2. I configure our Exchange 2003 server to support RCP over HTTPS and we published the settings for the Outlook thru the GPO. I have only one laptop in the organization that can't connect thru this settings. all others works fine. What could be the problem? I uninstalled the Office and reinstalled it without success. I read here about the option to add 2 regkeys to the RPC and tried it but it didn't work. Sniffing the communication on this laptop shows that it even don't try to connect to the Exchange server thru RPC over HTTPS. It only try TCP/IP. any help? Udi. Udi Burg www.unisfair.com

Hi, You may disable the firewall and check the result. Additionally you can refer the following article to troubleshoot this kind of issues. How to troubleshoot client RPC over HTTP connection issues in Outlook 2003 Since this is a Microsoft Outlook issue, I suggest you contact our Outlook support for further assistances. Outlook 2007 Solution CenterArthur Xie - MSFT

Hi Arthur, I disabled the FW in advance. However, I will check the article and will contact your support if needed. Udi Burg www.unisfair.com

Hi Arthur, Tried that article and the results are: Testing RPC/HTTP connectivity RPC/HTTP test failed Test Steps Attempting to resolve the host name eas.unisfair.com in DNS. Host successfully resolved Additional Details IP(s) returned: 69.18.172.111 Testing TCP Port 443 on host eas.unisfair.com to ensure it is listening and open. The port was opened successfully. Testing SSL Certificate for validity. The SSL Certificate failed one or more certificate validation checks. Test Steps Validating certificate name Successfully validated the certificate name Additional Details Found hostname eas.unisfair.com in Certificate Subject Common name Validating certificate trust Certificate trust validation failed Additional Details Certificate chain could not be built. You may be missing required intermediate certificates. What need to be done in order to fix it? Udi Burg www.unisfair.com

Maybe you can refer the following thread. Certificate chain could not be built. You may be missing required intermediate certificates. You may check if the Canonical Name is correct.Arthur Xie - MSFT

Maybe you can refer the following thread. Certificate chain could not be built. You may be missing required intermediate certificates. You may check if the Canonical Name is correct. Arthur Xie - MSFT Sorry, but what is Canonical name? Udi Burg www.unisfair.com

Hi, You may disable the firewall and check the result. Additionally you can refer the following article to troubleshoot this kind of issues. How to troubleshoot client RPC over HTTP connection issues in Outlook 2003 Since this is a Microsoft Outlook issue, I suggest you contact our Outlook support for further assistances. Outlook 2007 Solution Center Arthur Xie - MSFT Since the Outlook 2007 solution center is a payment support option, I'm expecting from this forum to help me with the problem and not to point me to the payment option. That's why I'm not accepting this reply as an answer to my problem. Udi Burg www.unisfair.com

Windows 7Exchange 2007proxy settings in outlook 2007.connect using ssl only only connect to proxy servers that ... check that box and put in msstd:the same as the https:// line for your URL connection to exchange. This works for some folks in our company. Seems to be hit and miss.Just a thought.