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    Minecraft Education | Unable to join multiplayer game

    Firewalling
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    • P
      posix
      last edited by

      Hello Netgate Forum,

      This is what I need some assistance.

      Problem Description:
      Unable to join multiplayer game in Minecraft Education Edition.
      When attempting to join it fails with "Unable to Join World"

      Hardware:
      SG-5100 2.4.5-SP1

      Troubleshooting:
      Checked and noticed that while it failed-
      Status->System Logs->Firewall->Normal View

      WAN	PUBLIC_IP:19132	WAN_IP:54784	UDP

      And read manual
      https://education.minecraft.net/wp-content/uploads/Minecraft-Education-Edition-Multiplayer-Guide.pdf
      Page 2

      Port 19132 TCP AND UDP (this carries Minecraft multiplayer traffic)

      I created the following NAT rule: Under Firewall->NAT->Port Forward

      Interface WAN
Protocol TCP/UDP
Destination WAN Address
Destination port range: 19132 (Alias MincraftPort)
Redirect IP 192.168.40.99 ->DHCP static address 
Redirect Target Port 19132 (Alias MincraftPort)

      I am not longer seeing any blocked messages related to port 19132 or target IP.

      On Firewall->NAT->Outbound I have following configured

      Manual Outbound Nat Rule Generation.

      I also created an outbound rule

      Interface WAN
Address Family IPv4
Protocol TCP/UDP
Source Network 192.168.40.99/32
Address Interface Address
Port or Range - Blank - Static Range checked

      Its on a VLAN with no pfblocker or any other application. Internet works without issue.

      Took a packet capture and as far as I can see low number of re-transmits I can see the TCP flow and TLS handshake. RakNet is the protocol used.

      This is for my childs AGP class and all my childs class mates can join. I have spent two days troubleshooting on my own. Any suggetions?

      DaddyGoD 1 Reply Last reply Reply Quote 0
      • 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)

        P 2 Replies Last reply Reply Quote 0
        • P
          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)

              P 1 Reply Last reply Reply Quote 0
              • 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.

                      1 Reply Last reply Reply Quote 0
                      • 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....

                        1 Reply Last reply Reply Quote 0
                        • 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)

                          P 1 Reply Last reply Reply Quote 0
                          • 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)

                              1 Reply Last reply Reply Quote 0
                              • 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)

                                  1 Reply Last reply Reply Quote 0
                                  • 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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                                        • K
                                          kasatka Banned
                                          last edited by kasatka

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                                            GeorgiaClark Banned
                                            last edited by

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