People can join my custom games but i cant join other people's custom game.

[chickenfighter10]

When I make a custom game people can enter, but when i try to join their game it dosent work; it just keeps saying joining session and nothing happens. They have upnp enabled and all have the same exact settings in firewalls, router securities, etc. i tried following

https://forum.plutonium.pw/topic/7/custom-games-with-friends

but still dosent seem to work.

I want them to host because my game crashes alot and i dont wanna have to reset progress for everyone.

[Resxt]

chickenfighter10 the guide is very clear about this.
UPnP doesn't work for every network configuration so if it doesn't they'll have to port forward instead
https://plutonium.pw/docs/custom-games/#what-is-upnp
https://plutonium.pw/docs/custom-games/#if-upnp-is-enabled

As for your crash issues what is your antivirus?
Repairing and adding an exception in your antivirus or uninstalling it (depending on what it is) could help with that
https://plutonium.pw/docs/repair/
https://plutonium.pw/docs/antivirus/

[chickenfighter10]

Im pretty sure the problem's on my end. several of my friends can join each others' games, but i cant.