Logon failure: the user has not been granted the requested logon type at this computer.
You may be trying to log on interactively to a computer you can only access over a network, or vice versa.
Change your logon location. Try to log on either locally (interactively) or remotely (over the network), as appropriate. You may want to ask the person who administers computer security to change the security database so you can log on either locally or remotely.