Warning:
Be sure to make a backup copy of the registry prior to making any changes to it.
Use the Registry Editor at your own risk.
To restore the Connection tab to the Internet Options, follow the procedure outlined below:
1. Go to Start>> Run. Type in: regedt [Enter] or click OK.
2. Navigate to the following registry key:
HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Control Panel
3. Single left click the Control Panel key to open its contents in the right pane.
4. In the right pane, double click the entry titled: NameTab
5. Change the DWORD value from 1 (one) to 0 (zero).
6. Exit the registry editor and restart Internet Explorer.
related link: http://www.5starsupport.com/info/ietechinfo.htm#connection-tab
