The goal is to match your settings to the below screenshot.
For item 2, the preferred order is Explicit, Implicit, and then No TLS (in order of encryption for the connection). Some IT teams will block the encrypted transmissions, so you could check what setting you have, and bump down to Implicit or No TLS retrying each time until you find a setting that works for you.
Typically item 3 should be set as passive as a standard.
As always if you need further assistance with this or any other issues please reach out to the friendly PowerPro support team!