Hello,
Thank you for posting on the Microsoft Community forums.
To connect to a remote PC, that computer must be turned on, it must have a network connection, Remote Desktop must be enabled, you must have network access to the remote computer (this could be through the Internet), and you must have permission to connect.
For permission to connect, you must be on the list of users.

Before you start a connection, it's a good idea to look up the name of the computer you're connecting to and to make sure Remote Desktop connections are allowed through its firewall.
Hope this help. If you have any question or concern, please feel free to contact us.
Regard.