When configuring for auto logon, we configure the regitsry as follows: HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon...AutoAdminLogon set to: 1 DefaultDomainName: EXCHANGE DefaultUserName: the specified username DefaultPassword: user's password. We have also tried Sysinternals AutoLogon. The auto logon never works when connected to the network. You end up on the logon screen with the username, then a field that shows "enter email address or phone number" and a field for a password. But if you unplug the network connection and turn off wireless, the PC/laptop will auto logon with no problems. I assume this must be an issue with authentication??