hi i just bought new router 4G but it keep give me fp ,those the resullts iv got
our 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 1' through port 8004 (this is your WAN or router port)
Received data from 'server 2' through port 8004 (this is your WAN or router port)
Received data from 'server 3' through port 8004 (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.

Yeah, that's what happens if you wanna play through a 3G/4G/5G mobile network connection. You either get a VPN provider, so your traffic is routed through a tunnel or you get DSL / cable.