I understand that you are having some issues with your Slingbox, since you are not able to get the remote connection. Besides, it is showing an alert message.
The following link will provide you with the information about the alert message.
In this situation, I recommend you contact someone at the Slingbox location in order to reset the Slingbox SOLO and run the Setup Assistant for Internet Viewing.
Make sure to check these links and follow the included recommendations.