Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed
Messages like "Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed. Disconnect all previous connections to the server or shared resource and try again." have to be modified. This message fails to communicate the problem in language that is understandable to the average user, nor does it suggest a tangible method of resolution of the problem. This error message was written by a nerd, for nerds. Only nerds would know how to actually fix this problem.
Suggest, "Close all current network connections to this server and try again" button, or pointing to potential causes/resolution to this problem instead of just displaying the message.