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    Minecraft Education | Unable to join multiplayer game

    Scheduled Pinned Locked Moved Firewalling
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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.

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          • P
            posix @Uglybrian
            last edited by posix

            @uglybrian no itโ€™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 itโ€™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) ๐Ÿ˜Š

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

                BTW:
                so I asked about UPnP ๐Ÿ˜‰

                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 ๐Ÿ˜‰

                    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

                          This post is deleted!
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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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                                kasatka
                                last edited by kasatka

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                                  GeorgiaClark
                                  last edited by

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                                    GeorgiaClark
                                    last edited by

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