I am having a problem with Outlook Anywhere. My current environment is Exchange 2003 SP2. I have discovered that Outlook clients running in Cached Exchange Mode cannot download the Offline Address Book and in some cases the entire Outlook client freezes when they try to open the Address Book. This only occurs when they are configured for Outlook Anywhere (RPC over HTTPS) and the proxy address points to our Cisco load balancer(Cisco CSS11501 Software version sg0750103 07.50.1.03) VIP that load balances our 2 Exchange 2003 SP2 Front-end OWA servers. I have the SSL certificates installed directly on the OWA servers and not the Cisco CSS. If I point the OWA DNS name directly to either OWA server, it works fine. Round Robin DNS works fine as well. Only when point the OWA DNS name to the VIP on the CSS that I run into address book problems. All other Oulook client functionality seems to be fine. This seems to be more of a problem with Outlook 2007 clients more than Outlook 2003 clients but I have experienced problems with both. When I look at the connection status of the Outlook client when I try to manually download the OAB it just sits at "connecting..." and never establishes the connection. The other "Mail" and "Public Folder" types are established. I tried unchecking the "Encrypt data" option in Outlook and that didn't help. Any ideas?Steve

Since OWA DNS name points to either CAS server fine, the issue can occur by incorrect VIP hardware Load Balance settings. Currently, there is no VIP lab and we do not have enough resource about HLB, I suggest you contact VIP vender for further assistance. Thanks. NovakPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.