Known Issues

Make sure you have completed the three setup steps listed on the left. 

Note - Service Providers will need to decide how this is shown to end users, if at all. #4 should probably NOT be shown to end users but is useful for service provider support to understand.

1. Outlook RPC over HTTP mode requires reliable Internet connectivity. If you get connection errors, which are identified by the message at the lower right hand corner of the Outlook window as either "trying to Connect", "Connected" or "Disconnected", you will need to follow the troubleshooting document provided at <insert link for FAQ here>. 

2. RPC/HTTP: If you try to use the address book to look up an address or perform a search and it immediately fails and then you try it again an it works.  This is typically caused by intermittent connectivity failures between your PC and the server. If the problem persists, please follow the instructions in the document at <insert link for connectivity self-help doc (developed by service provider) here>.

3. Outlook goes into disconnected mode after being connected, then  Outlook won't connect in less than 15 minutes. During this time, verify that OWA is reachable and working correctly.  This is due to the "backoff" algorithm in Outlook RPC/HTTP where we stop trying to reconnect as frequently after we fail continuously for 5 minutes.  There is a menu that shows up "File | Connect to Exchange" that will reconnect you.

4. Repaired Windows (from an emergency recovery disk or other recovery mechanism) Outlook no longer connects.  The user can still connect via OWA and see their mailbox correctly.  An RPC registry value(s) is missing.  Diagnose by looking in the registry.  Correct by downloading this zipped file, and extracting and importing the included WinRepBg.reg registry file. You should get an error message about "a windows component" not being correctly installed.
   
   [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Rpc\ClientProtocols]
   "ncacn_np"="rpcrt4.dll"
   "ncacn_ip_tcp"="rpcrt4.dll"
   "ncadg_ip_udp"="rpcrt4.dll"
   "ncacn_http"="rpcrt4.dll"