hello,
is there any player from china mainland?
Game Diagnostics says “succeed”

Network Didgnostics says:

Starting networking diagnostics...

Your local network port (UDP) is 16000. All game traffic is routed through this port. This can be changed in "Settings" -> "NAT Traversal".

Attempting to connect to 3 test servers. This will take around a minute to complete...

Received data from 'server 3' through port 34117 (this is your WAN or router port)
Received data from 'server 1' through port 34117 (this is your WAN or router port)
Received data from 'server 2' through port 34117 (this is your WAN or router port)
14 seconds left.
9 seconds left.
4 seconds left.

Test Result: Not Forwarded
Network Health: Warnings found but probably OK
Recommended Action: if you experience networking problems such fast proxy then port forwarding is recommended. The only port you need to forward is UDP port 16000 on Voobly you do NOT need the direct play ports 2300-2400 and 47624.
Details: You were able to receive traffic on the same port from all the servers, however, you were not able to receive data on the port configured in the Voobly client settings. It is recommended you forward this port in your router to the PC you use to play.

For help understanding this report or for more information go to http://www.voobly.com/pages/view/177#Network_Diagnostic_Tool.

I could invite him in a room, but when I launch, he don't reach the game...

You must forward port 16000 UDP in order to play on Voobly. Please find below a self-help article that explains how to achieve this:
[You must login to view link]

thanks
I just have a common account of my router, when I login in, there no options about port, may be I need a Administrator account of router, but at this moment the ISP did not give us this, I will try.

maybe update later.

You could call your ISP and ask them to forward UDP 16000.

update:

My ISP did NOT provide me a public ipv4 ip, I am in a vast LAN,is this needed absolutely? does player within the same ISP,city can join/host a game?
I have a ipv6 addresss, is this OK?

You require a public IP (IPv4) address OR your ISP could forward 16000 UDP for you.