I am having an issue getting Exchange 2013 to set the external URL for use with OWA and ActiveSync. I am getting an error that the RPC service could not be contacted for the server. Since this server is in a DMZ for security, when I tried it first and then got this error I went to the server directly and still no go from using the web browser on the server. I had a certificate issued and applied that for use on the server, and this certificate includes the name of that we are going to use for external access (mail.orgname.com). I am thinking that it might be an IIS management issue, but I didn't know anywhere else to go with tracking this issue in the new Exchange server. Any thoughts or suggestions as to where I could find this information.

Hi, make sure that you are able to telnet to port 443 on the url from an external machine To check the things at IIS, go to IIS console and browse the url: 443 (https). Also check, whether you are getting any error for the cmdlet get-owavirtualdirectory Also, check for the possibility of rebuilding the owa virtual directory: http://technet.microsoft.com/en-us/library/bb123515.aspxRegards from ExchangeOnline

Hi, make sure that you are able to telnet to port 443 on the url from an external machine To check the things at IIS, go to IIS console and browse the url: 443 (https). Also check, whether you are getting any error for the cmdlet get-owavirtualdirectory Also, check for the possibility of rebuilding the owa virtual directory: http://technet.microsoft.com/en-us/library/bb123515.aspxRegards from ExchangeOnline

Thank you for the information, that did help. I am using Microsoft Forefront TMG along with the TMG client on all systems, and strict RPC enforcement was enabled, and thus it was causing an issue, and so I disabled it for the connections from the servers to themselves, and that solved the issue. Thank you for the information