Get an easy way to fix Outlook connection issues with Exchange 2010

There are certain circumstances where you face problems when attempting to start Outlook profile consisting of exchange 2010 mailboxes the first time after moving to Exchange 2010 server. You may get the following errors after which you are not allowed to open Outlook window and cannot access PST files. The errors appeared at time of exchange 2010 outlook connection issues are similar to this one:

The connection to the Microsoft Exchange Server is unavailable. Outlook must be online or connected to complete this action.

Or

Outlook could not log on. Check to make sure you are connected to the network and are using the proper server and mailbox name. The connection to the Microsoft Exchange Server is unavailable. Outlook must be online or connected to complete this action

Cause:

As the Exchange server 2010 Release to Manufacturing (RTM) configuration needs RPC encryption by default but when outlook does not meet up the same, you encounter exchange 2010 outlook connection issues.

Solution:

To fix outlook connection problems with Exchange 2010,try to update the existing Outlook 2003 profile manually in order to use RPC encryption with Exchange 2010 by following the below steps:

  1. Go to Control Panel ->Mail to click on Show Profiles.
  2. There select the profile that you want to update and then go to its Properties
  3. In Email accounts->View or change existing e-mail accounts->Next-> select the MS Exchange server account to click on Change option.
  4. After this, a dialog box appears that details you about mailbox server and user name there click on More Settings->Security
  5. Finally, check the Encrypt data between Microsoft Office Outlook and Microsoft Exchange Server check box option and click on OK to see the results

This is how you can fix outlook connection issues with Exchange 2010 but apart from updating the existing Outlook profile, you can also create a new profile so that it can further use RPC encryption along with Exchange 2010 server.