When losing network connection to database, database login prompts for but does not accept password

We use an MS SQL data source.
At the end of the day I remove my laptop from the dock and go home.
If I have RDM open, when I get home and I try to bring up the RDM window, I am prompted for my database password.
It does not accept the correct password that is already saved in the data source connection settings.
I have to close RDM from Task manager and open it again.
The same happens when I come back to work and connect my laptop to the dock.
It only seems to happen if I close the lid of the laptop.


I have attached screenshots of my data source settings.

What do I need to set for RDM to go offline instead of requesting the password?