DUNS ERROR 645

645 - Internal authentication error.

Windows 95/98 - This error can occur if the Require encrypted password option is enabled on the Server Types tab in the connection's properties, or an incorrect user name or password have been entered. See MS KB Article Q199780

Window Me - This error can occur if the Require encrypted password option is enabled in the Security tab in the connection's properties, or an incorrect user name or password have been entered.

MSN 2.5 - If you are using MSN 2.5, this error can occur if dial-up adaptor or components are missing. See MS KB Article Q173644 (Some users report this report/fix applies even though they have never used MSN.)

Windows 95/98 - This error can occur if the desktop PC is connected to a handheld PC is certain circumstances. See MS KB Article Q184227

Windows 95/98 - This error can occur if you are attempting to make a VPN (virtual private networking) connection, and VPN has not been installed correctly. See MS KB Article Q188141

All versions of Windows - This error can occur if you are attempting to connect to a Windows 2000 domain that has had a RRAS (Routing and Remote Access Services) server log on without administrative privileges. See MS KB Article 227747

This error might occur if you have a modem selected in the DUNS connectoid that is no longer installed in the computer: make sure correct modem is selected in the connectoid.

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