I built a Lightswitch app to edit my SQL Azure data. If I open the app and don't use it for a while, when I try to to use it again I get the error:

> 
> User does not have access to the invoked operation. Your session may
>  have timed out. Please restart the application.
> 
> 
> 

It seems that the connection was closed because it was not being used and I need to create a new connection.
What can I change to avoid getting this error?