Can the security protocol on Terminal Provider UiPath.Internal be changed--I need TLS?

In the Terminal activity Configure Connection screen, I’ve configured the settings to Provider UiPath.Internal, set the address, port and terminal type (TN3270), when I press Ok the terminal says it’s connected but the terminal window that opens is just blank and unresponsive.

I suspect that this might be because I’ve not been able to specify that I need to use TLS and this is probably not the default.

So I have two questions:

  1. Is it possible to set TLS with UiPath.Internal?
  2. Could this problem be caused by something else?

Any ideas about this? i have the same problem with a connection to a terminal without TLS