UFW if enabled has default rules of:

Default: deny (incoming), allow (outgoing), disabled (routed)

Which for a default Solus install is pointless until you make changes like having sshd, httpd running etc as we have no services listening to remote connections so denying incoming access when we are not listening is... yeah. It would also cause problems with hosting.

    Antoine Wait, so did you already have these problems before installing ufw? Because I think in its default configuration it will block most traffic.

        Harvey is not with the hosting but with joining ^^ haha

        thanks to solved my trouble black screen launcher of paradox or other game 🙂 who solus dosen't solved it. we always need to fixed it manually.

          Staudey yeah a guy help me to solved this but i'm not on there community any more.

            Harvey W if enabled has default rules of:

            So i need to allow
            like this ?
            sorry is in french.

              As a troubleshooting step I would disable the firewall and see if it helps. If not you don't need to worry about relaxing the firewall rules.

              in public proflile I can joining a game in crusader king III but not on the isle im trying to connect me on server but im redirect to the main menu I really need help for that.

                Antoine what if you turn it off completely?
                (also the The Isle server browser isn't exactly the most reliable to begin with, speaking from experience ^^)

                    nothing happend when i turn off completely

                    Staudey With the flatpak I can join game in the isle and I don't need to setup my paradox launcher. Why with the solus steam repo nothing work ? that so wierd. The perf are very great.

                      Steam doesn't work for me either, there's a bug upstream that valve is working on. The work around is to open your terminal type "steam" and hit enter, I use this fix, and am waiting for the steam update. Try turning all the steam integration off and launch steam using the terminal.

                        bleh for me the only way for run my game is to use the flatpak steam it's not very user-friendly or even normal at all at this level, there's no point in packaging steam.

                            Antoine If you're using Steam flatpak, you need to install FLATSEAL. Flatpak will essentially sandbox your app, in this case Steam, and the games you launch in it. Flatseal lets you change the permissions of all installed Flatpak apps. I'm not sure which permissions specifically, but they're likely the ones to do with file sharing and allowing access to your local folders.

                            I'd use the repo version of Steam, far less issues.