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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.

Symptom

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.

Solution

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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