Cannot connect/host using Netplay in project M

[arcimine]

(04-20-2014, 06:16 AM)JMC47 Wrote: Manually port forward a port to your computer on your router (UDP), then select that port in Dolphin's Configuration menu. That should allow you to host.

I have tried this but I didnt specify UDP, I did both, UDP and TCP and it didn't work. Is there a specific port for Dolphin or can I use any high number port?