Registering this instance of the Cad with the server failed. Cad process continues.
The CAD failed to register address information to the server, due to an error. There should be a message immediately preceding this message that would indicate the problem more precisely.
The server did not register the information for the CAD. CAD processing will continue, but some functions of the CAD may not be working properly.
Look at messages immediately preceding this message to help determine what error occurred.