Which prevents you from establishing a Remote Desktop connection to a remote computer?

Incorrect monitor settings in Device Manager affect the local display output of the computer and do not influence the ability to establish a remote network connection.

Incorrect screen resolution settings affect how the display appears locally or within an already established RDP session, but they do not prevent the initial connection from being made.

Remote Desktop Protocol (RDP) utilizes a specific network port (typically TCP port 3389) for communication; if Windows Firewall on the target computer is not configured to permit inbound connections on this port, it will block any incoming RDP connection attempts, thereby preventing the establishment of a remote desktop session.

Incorrect security settings in Internet Explorer are related to web browsing and do not impact the underlying network protocols or services used by Remote Desktop Connection.