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    Minecraft Education | Unable to join multiplayer game

    Scheduled Pinned Locked Moved Firewalling
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    • DaddyGoD
      DaddyGo @posix
      last edited by

      @posix said in Minecraft Education | Unable to join multiplayer game:

      This is what I need some assistance.

      Hi,

      Have you checked the host computer FW too?
      (AV software FW or Win FW)

      It is not enough to configure the hardware firewall (pfSense NGFW) 😉

      Cats bury it so they can't see it!
      (You know what I mean if you have a cat)

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        posix @DaddyGo
        last edited by

        This post is deleted!
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        • P
          posix @DaddyGo
          last edited by

          @daddygo

          Thanks for the response. Yes! bitdefender firewall on the PC has and was disabled.

          UPDATE: others can join when my child hosts the multiplayer game/world but they still cannot join their classmates/teachers worlds/multiplayer game.

          But the same players/teacher can join each other’s without issue.

          DaddyGoD 1 Reply Last reply Reply Quote 0
          • DaddyGoD
            DaddyGo @posix
            last edited by DaddyGo

            @posix said in Minecraft Education | Unable to join multiplayer game:

            others can join when my child hosts the multiplayer game/world

            It sounds like multiplayer is working (port 19132), ergo this is not a pfSense or host FW issue

            -does Minecraft Edu. use UPnP or other ports?

            Cats bury it so they can't see it!
            (You know what I mean if you have a cat)

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            • B
              bigchimpin Banned
              last edited by

              Welcome to hell, my friend. We are approaching our four year anniversary of this issue, join me in celebrating the eternal life of Feature #7727: https://redmine.pfsense.org/issues/7727

              https://forum.netgate.com/topic/153478/pfsense-multiple-pcs-open-nat-a-solution-and-a-grievance

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              • U
                Uglybrian
                last edited by

                Hello, by any chance are you using a Apple device with private addresses enabled in the Wi-Fi?

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                • P
                  posix @DaddyGo
                  last edited by

                  @daddygo no mention of UPNP.

                  DaddyGoD 1 Reply Last reply Reply Quote 0
                  • P
                    posix @Uglybrian
                    last edited by posix

                    @uglybrian no it’s windows 10 dell inspiron laptop it uses private subnet 192.168.40.x they all do. Wi-Fi is provided by unifi AP.

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                    • P
                      posix @bigchimpin
                      last edited by

                      @bigchimpin hey I remember seeing this bug!
                      Lol it’s been hell last two days. Was considering shelling $799 to netgate support....

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                      • DaddyGoD
                        DaddyGo @posix
                        last edited by

                        @posix said in Minecraft Education | Unable to join multiplayer game:

                        no mention of UPNP.

                        as the colleague @bigchimpin mentions, we have already discussed it here:
                        (wait - wait and end up waiting) 😊

                        https://forum.netgate.com/topic/153514/nat-issues-when-playing-games-on-two-computers/12?_=1599056109642

                        BTW:
                        so I asked about UPnP 😉

                        Cats bury it so they can't see it!
                        (You know what I mean if you have a cat)

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                        • P
                          posix @DaddyGo
                          last edited by

                          @daddygo

                          Ok thanks, so another update I was researching on UPnP and forgot to add the following configuration. (I did this for another gaming PC to get from strict NAT to moderate NAT and I did see better behavior).

                          Services -> UPnP & NAT-PMP (check)
Enable UPnP & NAT-PMP (check)
UPnP Port Mapping Allow UPnP Port Mapping (check)
External Interface WAN
Interface SPECIFIC VLAN interface

                          Then under

                          
UPnP Access Control Lists
allow 53-65535 192.168.40.99 53-65535

                          Unfortunately still not able to join games. Looking at the packet capture I took using (Full) Level detail. I saw many retransmits in TCP. They would come in batches in the flow then everything would return to normal. I googled upnp wire shark capture and it seems all are UDP port 1900 and SSDP.

                          @bigchimpin @DaddyGo I want to thoroughly exhaust my options and go through the steps before calling it.I dont doubt your analysis. Mainly documentation. Perhaps might help others get a workaround in place as I did.

                          DaddyGoD 1 Reply Last reply Reply Quote 0
                          • DaddyGoD
                            DaddyGo @posix
                            last edited by

                            @posix said in Minecraft Education | Unable to join multiplayer game:

                            I want to thoroughly exhaust my options

                            This will not be resolved today, maybe tomorrow 😉

                            Cats bury it so they can't see it!
                            (You know what I mean if you have a cat)

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                            • P
                              posix
                              last edited by

                              UPDATE:

                              My child confirmed today that they are able to join other players world.

                              I can confirm no change in configuration other the last update I provided on
                              making changes Services UPnP & NAT-PMP.

                              Will monitor some more.

                              DaddyGoD 1 Reply Last reply Reply Quote 0
                              • DaddyGoD
                                DaddyGo @posix
                                last edited by

                                @posix said in Minecraft Education | Unable to join multiplayer game:

                                making changes Services UPnP & NAT-PMP.

                                Which I would like to add, with things like UPnP & NAT-PMP be careful on your firewall.
                                Always run on a separate interface
                                (I see you have a VLAN for this purpose)

                                Cats bury it so they can't see it!
                                (You know what I mean if you have a cat)

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                                • T
                                  tyluerdisy Banned
                                  last edited by

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                                  • dmp1ceD
                                    dmp1ce
                                    last edited by dmp1ce

                                    Did anyone try just port forwarding the recommended ports on the https://portforward.com/minecraft/ page? I'm going to give that a try because I don't really want to turn UPnP on.

                                    Some additional ports to forward would be 19133 and 25565 which I didn't see mentioned in this thread.

                                    dmp1ceD 1 Reply Last reply Reply Quote 0
                                    • dmp1ceD
                                      dmp1ce @dmp1ce
                                      last edited by

                                      Nevermind, I guess 19133 is for IPv6 and 25565 is for Java Edition. So, opening 19132 should do it for my setup, but I cannot join only host. Minecraft Education gets the wrong IP though.

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                                      • K
                                        kasatka
                                        last edited by kasatka

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                                          GeorgiaClark
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                                            GeorgiaClark
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