Good, back to the original question; What is being considered slow?Slow is when the adapter speed reported in Windows is less than 128KB per second which is a 1.0 Mbps connection.I have been spending a fair amount of time in the newsgroups lately, and I have seen a lot of posts around new objects not showing in the Offline Address List when clients are running in Outlook cached mode. This is very important because in medium to large sized environments there is a good chance that when you update the Offline Address List, the OAB Generation server will be reading the Global Address List objects from a domain controller that has not received the new objects that were created.1.This is a fairly easy process to troubleshoot if you know where to look and what to look for. Microsoft Outlook 20 clients are configured for cached mode by default. An Outlook client will download the Offline Address Book assigned to the user when it synchronizes with the user’s mailbox for the first time.
- Incorrectly editing the registry can cause serious problems that may require you to reinstall your operating system.
On the Outlook client computer, open a registry editor, such as or Regedt322. Providing that replication has taken affect successfully and the Offline Address List in question has been rebuilt, you should see your new changes in your cache mode copy of the Offline Address List Once you have verified what domain controller you are connected to with your Active Directory Users and Computers MMC, you want to load up LDP.
Navigate to: HKEY_CURRENT_USER\Software\Policies\Microsoft\Office.0\Outlook\Cached Mode3. In the left pane, right-click the Cached Mode subkey, point to New, and then click DWORD Value. LDP is used to view objects in the Active Directory.
In fact, over the past few Exchange versions, the trend was to move away from the direct RCP connections and towards HTTP connections, even internally.
Actually, as of Exchange 2013, all Outlook connectivity is taking place via Outlook Anywhere. To get to the above dialog: Note: Once both options are enabled, the whole discussion about what is considered a fast and what is considered a slow connection becomes moot when it comes to the connection protocol.