Hi All, Is there anything in particular that i should check for error ? eg. Event ID in Exchange Server 2007 SP1 RU3 ? because i get this error randomly: Error 7 (net::ERR_TIMED_OUT): The operation timed out. while accessing OWA. Thanks./* Windows Infrastructure Support Engineer */

Please describe the exchange topology Does the issue happen to all users, just the users in the specific office? What’s the network topology between the problematic user’s machine and the exchange server? Please reproduce the issue, and then check the IIS log file Please increase the diagnostic logging level on the following categories, and reproduce the issue, see if there’s any error info in the application log on the CAS server MSExchange OWA\Core MSExchange OWA\ConfigurationJames Luo TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx) If you have any feedback on our support, please contact tngfb@microsoft.com