1. Is UPnP enabled on you an your friends routers? If not you could enable it on your router by Launch a web browser from a computer or mobile device that is connected to your router's network.
2. If you can't figure out how to do that there's another way first, launch the game though steam or launch waw without plutonium and download 2 things waw lan fix and Hamachi start a sever on Hamachi have your friend join the server than create a lan game than have the person who isn't the host join the lan game and then set the server settings to whatever you finally you should be able to play.
   here's video instructions for method 2: https://www.youtube.com/watch?v=3gt8mcevY2g&t=84s&ab_channel=MasterBeef96

I've already reinstalled both DirectX 9 and 10 and my headset is set to default but I think it might be a problem with windows 11 or outdated drivers.

I have no sound for headphones but my speaks work fine I've tried 3 headphones all have the same issue only on plutonium though

when I plug in my headphones sound simply does not work for all games on plutonium I can still hear YouTube, discord, and other things

you need to create a pubilc server with a password in order to play 3 or 4 players

the speaker option works just fine but when I change the sound option to headphones sound doesn't work in both mp and zm

It's currently not in the client but it is a planned feature

I'm not sure what is going on but I have no sound with headphones yes I have the correct sound device connected and yes I have direct x reinstalled any fixes? Edit: also other background apps like YouTube work fine on my headphones even when play t6