literally nothing works with this launcher when it comes to multiplayer capabilities.

noyshinji

Me and my friends have followed every step to a tee. We have both turned on UPNP and have forwarded ported. We don't have any extra VPNs, firewalls, or antiviruses. We have turned off Windows Real-Time Protection and even created an exclusion for it in our Real-Time Protection and Windows Firewall. We have installed and uninstalled it a million times. I'm slowly starting to be convinced that online is not possible and that everyone who says it is a fucking liar.
Love,
Noy

JezuzLizard

Currently private match doesn't allow connections very easily for the majority of people. Its been in this state for at least 2 years now, and there are no plans to fix it currently. So you'll have to setup a dedicated server instead following this guide https://plutonium.pw/docs/server/t6/setting-up-a-server/

Resxt

noyshinji said in literally nothing works with this launcher when it comes to multiplayer capabilities.:

everyone who says it is a fucking liar

That's an odd way of seeing things, because you cannot get it to work/don't know port forwarding
If you know port forwarding it takes 10s to get it to work
I'll give you more comprehensive instructions below

Custom games

Plutonium T6/BO2 party system isn't too reliable if you don't port forward

️ If you can port forward on your router
We highly recommend doing it since it will make parties way more reliable, should work all the time
Instructions to port forward: https://plutonium.pw/docs/custom-games/#t6

️ If you can't port forward on your router
The host will have to restart his game until the game shows the right IP
After starting his game, the host clicks on Options then goes into the System Info menu (press S)
If the IP ADDRESS line DOES NOT read 0.255.0.255 after EXTERNAL then players should be able to join.
If it DOES read 0.255.0.255 then the host restarts his game and checks again.
Again and again until the IP is not this/matches your external/public IP

️ If you still run into issues after port forwarding/after the host has the right external IP
Double check that nothing can mess up something related to network (allow the bootstrapper exe in your firewall, turn off/exit your VPN, exit any app similar to Hamachi, double check if your antivirus doesn't have a firewall included etc)
The exe to whitelist is plutonium-bootstrapper-win32.exe in %localappdata%\Plutonium\bin
The port to whitelist is 3074 (UDP)