How can I create a Multiplayer Internet Server on Q3A?

Hi, I just download the ioquake 3 arena and I’m having troubles to create a server in the multiplayer option.

I have Windows 10.

When I press Multiplayer, I clic on “Create”

Then I leave the options:

Frag Limit 20
Time Limit: 0
Pure Server: on (off)
Dedicated: Inernet
Punkbuster: Disabled

Is there a problem there? or I need to do something else to be able to play.

P.S.: when I open the internet section, I can see and play in other created rooms.

Hope you can help me.