Dear all,I have problems when running the scheduling assistant. The error is "Suggestion cannot be provided because free/busy data could not be retrieved".Can someone point me in the right direction?Thanks in advance.Bas

Try the suggestions given in http://social.technet.microsoft.com/Forums/en-US/exchangesvrclients/thread/b5974f78-b016-46d4-9f6c-b89dc7d80113Raj

Hi,Please have a look at this link , maybe it is also helpful(view the accepted suggestion locate near bottom).http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_22840374.htmlFrank Wang

Hi,Please have a look at this link , maybe it is also helpful(view the accepted suggestion locate near bottom).http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_22840374.html Frank Wang Hi Bas,How about you question? Any update?I double check the link I gave you , and I find the solution disappeared. So I decide to copy it to here. Sorry for your discommodiousness. you need to create another website with a separate email address for autodiscover.domain.com.here is more info:Unified Communications certificate Microsoft recommends that you provide both names in the same certificate. This is done thru something called a Unified Communications Certificate also know as a Subject Alternative Name Certificate. There are a number of vendors that can provide you with this type of certificate. The advantage of a Unified Communications Certificate is that it makes configuration of Autodiscover much easier; the down side for our customers is that currently, this type of certificate can cost up to 10 times more than any existing single name certificates that they may already own. In this case, we need to configure the certificate to contain both outlook.customersat.com and autodiscover.customersat.com. Also this will resolve the issue when internal clients got certificate prompt. Configuration with this type of certificate is very easy. Here is a general outline of the process: Get a Unified Communications Certificate for your environment with outlook.customersat.com and any other names you need. (e.g. autodiscover.customersat.com , etc) Apply the Certificate to the CAS server. Configure your internal SCP to point to Autodiscover.customersat.com Configure your Internal and External Service URLs to point to outlook.customersat.com Make sure that your configured URLs resolves via DNS to the expected IP address of the CAS server Alternative methodsIf you are not able to get a Unified Communications Certificate then there are two other methods you can use to get the same level of functionality. Both of these methods are supported by Microsoft but are harder to implement and manage over the longer term and thus could have a higher total cost of ownership depending on your environment. Both also require that you have two external IP address available. Method 1: Multiple Certificates To work around the need for a Unified Communications Certificate you can get two certificates for your environment; your existing mail.company.com certificate and a new Autodiscover.company.com certificate. As long as we can serve up the correct certificate at the correct time we are able to connect with no issues. Doing this simply requires that we setup two virtual servers on the CAS server. One services Autodiscover.company.com on one IP address and the other services the remaining web services on mail.company.com using a different IP address. Here is an outline of this setup process: 1. Get a separate certificate for mail.company.com and Autodiscover.company.com 2. Create a new virtual server in IIS on the CAS 3. Create a new Autodiscover virtual directory in the new virtual server and remove the old one. 4. Assign separate IP address, and certificates to each Virtual server 5. Configure your internal SCP to point to Autodiscover.company.com 6. Configure your Internal and External Service URLs to point to mail.company.com 7. Make sure that your configured URLs will resolve internally and externally via DNS to the expected IP address for each of the servicesIn this configuration, internal domain member clients find the SCP to make the connection to Autodiscover. External clients find Autodiscover.company.com using DNS to make the connection to Autodiscover. In both cases the clients are referred to mail.company.com for the actual Exchange Services. Method 2: Http Referral This option allows us to redirect the client to another URL for Autodiscover. The major downside of this configuration is that users are prompted in Outlook to confirm this redirection. There is a check box on the prompt to not get prompted again for this URL to limit the impact for users. To implement this configuration we still have to use two IP addresses and two virtual servers; but we only need one certificate. Here is an outline of this setup process: Create a new virtual server on the CAS server with a new IP Create a stub Autodiscover virtual directory and Autodiscover.xml file thru IIS Redirect the Autodiscover.xml file to mail.company.com Configure your internal SCP to point to mail.company.com Configure your Internal and External Service URLs to point to mail.company.com Make sure that your configured URLs will resolve via DNS to the expected IP address of the CAS server In this configuration, domain member clients get the SCP and connect using that URL to the Autodiscover service. External clients connect to Autodiscover.company.com over http and get a referral to mail.company.com. The external Outlook clients are prompted the first time they make this connection to verify they are being redirected to a trusted URL; once that is accepted Outlook connects to the mail.company.com for Autodiscover. For the two methods, you can refer to the following article.http://technet.microsoft.com/en-us/library/bb310762.aspx http://technet.microsoft.com/en-us/library/bb310764.aspx Frank Wang