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System Error 1240 Has Occurred

Attempting to mount a client to an SMB network share and you can receive the message:

Err Msg: System Error 1240 Has Occurred. The Account is Not Authorized to Login from This Station.


When connecting to a network share and the share name is incorrect, you will receive a very confusing error message.

net use x: \\Server\XYZ

System error 1240 has occurred.

The account is not authorized to log in from this station.


Selecting the correct share name (XYZ1 instead of XYZ) resolves this.

net use x: \\Server\XYZ1

The command completed successfully.

The error message caused by selecting a non-existing share makes this error message confusing.

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