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    [SOLVED] Communication problems between two computers

    How To... ?
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    • Fred
      Fred @EdJoynson last edited by

      @edjoynson on bootcamp the cable and adapted has to be plugged in before boot no matter what the IP configuration.

      http://www.fredrodrigues.net/
      https://github.com/fred-dev
      OSX 13.6.4 (22G513) MBP 2019 16" 2.3 GHz 8-Core i9, Radeon Pro 5500M 8 GB, 32g RAM
      Windows 10 7700K, GTX 1080ti, 32g RAM, 2tb raided SSD

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      • EdJoynson
        EdJoynson last edited by

        @Fred yes I found this out the hard way quite a while back, even when plugged in before hand we still had issues. 

        Ed
        Razer 15, i7 - 9750H, 16gb, 500gb m.2 SSD ,Windows 10.
        Surface Pro 5, i7-7660U, 16gb, 1tb SSD, Windows 10.

        Fred 1 Reply Last reply Reply Quote 0
        • Fred
          Fred @Lauri last edited by

          @lauri I was referring to the drop down menu that now says location automatic. Make a new location. Also to try make things simpler use only a wired network, no wifi, just one network connection as well. 

          http://www.fredrodrigues.net/
          https://github.com/fred-dev
          OSX 13.6.4 (22G513) MBP 2019 16" 2.3 GHz 8-Core i9, Radeon Pro 5500M 8 GB, 32g RAM
          Windows 10 7700K, GTX 1080ti, 32g RAM, 2tb raided SSD

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          • Fred
            Fred @EdJoynson last edited by

            @edjoynson not sure what this was then. The plug in before boot is documented in the manufactures windows driver limitations.

            http://www.fredrodrigues.net/
            https://github.com/fred-dev
            OSX 13.6.4 (22G513) MBP 2019 16" 2.3 GHz 8-Core i9, Radeon Pro 5500M 8 GB, 32g RAM
            Windows 10 7700K, GTX 1080ti, 32g RAM, 2tb raided SSD

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            • EdJoynson
              EdJoynson last edited by

              It sounds like very similar issues to what Lauri is having, we didn't think anything of it when it happened. The computer had an ip and could be seen by other computers when pinging them. But like described before, it didn't show an IP in Isadora. It happened on the mac for sure, cant remember about the windows machine. 

              Ed
              Razer 15, i7 - 9750H, 16gb, 500gb m.2 SSD ,Windows 10.
              Surface Pro 5, i7-7660U, 16gb, 1tb SSD, Windows 10.

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              • L
                Lauri last edited by

                @mark & all,

                Thousand thanks for your replies and help.

                I did what you Mark asked, and found the following:

                System Prefs Firewall options Isadora was set to “Block incoming connections”. Sorry, should have thought about that. Changed Firewall options to “Allow incoming connections” for all Isadora versions, and got the IP address in Isadora prefs v2.6 and v.2.6.1b4. Although, the same procedure to Isadora v.2.5.2 this did not help – IP address shows 0.0.0.0 in Isadora 2.5.2 prefs.

                However, the procedure to “allow apps from anywhere” did the trick – once. I had the same IP address in Isadora v.2.5.2 and system prefs once, and then I did this “sudo spctl --master-enable” and then “sudo spctl --master-disable” to again “allow apps from anywhere”, and IP address in v.2.5.2 prefs shows 0.0.0.0.

                But what’s strange is that the Net Broadcaster - listener pair works in v.2.5.2, even in Isadora prefs the IP address shows 0.0.0.0. So, v.2.5.2 seems erroneously showing a wrong IP address in prefs. Anyway, now the Net Broadcaster - listener pair works in all versions I have (2.5.2, 2.6 and 2.6.1b4).

                This all applies both to wi-fi and router (MacBookPro ethernet via a Satechi multiport adapter and a MacMini I’ve got at home). So it works in wi-fi network too, if both machines are in the same wifi network. I did not have the crossword ethernet cable with me now, so have to try that later.

                I’m leaving for a longer trip the day after tomorrow, and now extremely busy, so cannot make a TeamViewer session now, sorry. Let’s think about that after my return in March, if still needed.

                @mark Thank you again for your superb help!!!!

                Best,

                Lauri

                MacPro (2013), 3.0GHz 8-Core Intel Xeon E5, RAM 64GB, Dual AMB FirePro D700, OSX 10.13.6
                MacBookPro (15 inch 2018), 2.6 GHz Intel Core i7, RAM 32GB, Radeon Pro Vega 20, OSX 10.14.6

                mark 1 Reply Last reply Reply Quote 0
                • mark
                  mark @Lauri last edited by

                  Troubleshooting Network Issues with Isadora@lauri said:

                  Anyway, now the Net Broadcaster - listener pair works in all versions I have (2.5.2, 2.6 and 2.6.1b4).

                  OK glad to hear that we finally got you up and running.

                  Team: @Michel @Skulpture @DusX @mc_monte @crystalhorizon - please keep this in mind for the future

                  I've just written this support article called "Troubleshooting Network Issues with Isadora" -- you can refer users to that if this comes up again.

                  Best Wishes,
                  Mark

                  Media Artist & Creator of Isadora
                  Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

                  D 1 Reply Last reply Reply Quote 3
                  • D
                    DillTheKraut @mark last edited by DillTheKraut

                    @mark said:

                    Troubleshooting Network Issues with Isadora@lauri said:
                    Anyway, now the Net Broadcaster - listener pair works in all versions I have (2.5.2, 2.6 and 2.6.1b4).
                    OK glad to hear that we finally got you up and running.
                    Team: @Michel @Skulpture @DusX @mc_monte @crystalhorizon - please keep this in mind for the future
                    I've just written this support article called "Troubleshooting Network Issues with Isadora" -- you can refer users to that if this comes up again.
                    Best Wishes,
                    Mark

                     Sorry Marc, if I'm intervening here, with all respect but i think the support article is a bit misleading about the multicast point!
                    I'm not 100% sure about how Isadora and the net Broadcaster is handling this, but how usually multicast software should do it. And as I already used the net broadcaster with several dumb hubs, I'm pretty sure that this works fine. And if I'm wrong about that, I would like to know how this is handled, because I want to know, why I need to buy expensive routers and/or switches with a specific function, unless I have a lot of traffic! Not talking to use several routers in one network, just to split it even without routing to another subnet.

                    This is how I understand multicast and effecting network devices (taken from here, https://support.symantec.com/e... as it was the most simple description I found):

                    ----

                    Hubs, routers, and switches

                    Configuring a network to work with multicasting requires configuring the
                    physical devices that connect the computers to each other. These are
                    hubs, routers, and switches. A network uses hubs, routers, and switches
                    to send information from one part of the network to another part. Hubs
                    pass all the information they receive, without filtering it. Routers may
                    filter some information, and switches usually filter information.

                    In most cases, hubs do not require any configuration. Configuration is
                    required only in hubs that include capabilities that are normally found
                    only in routers or switches.

                    Configuring for multicasting

                    Configuring a router or switch to use multicasting requires that the
                    router or switch be IGMP capable. The specific steps that are used for
                    configuring any particular router or switch require information that is
                    specific to that router or switch. Information is usually available in
                    the documentation that accompanies the router or switch, or from the
                    manufacturer's Web site.

                    More information

                    If you suspect that your router or switch might not be correctly
                    configured for multicasting, you can test this possibility by using a
                    hub instead of a router or switch. If multicasting works when the
                    computers are connected through a hub, and not when they are connected
                    through a router or switch, the problem is probably due to the
                    configuration of the router or switch or to the number of hops between
                    the two computers.

                    -----

                    For my understanding, a full working, by all network devices supported multicast network is needed only, if you have a lot of traffic between them, like streaming video, or transmitting a lot of parameters parallel, etc.

                    And my personal extra bit is, that a simple non managed switch should usually work like a hub in this case and just broadcast the multicast signal. Only more expensive managed switches should have these issues.

                    Again, I might be wrong about this, but thus meaning everything I learned about RTP or audio protocol issues, like dante or  Motu might not be right, so I would be happy to get an update about this!

                    kindly
                    dill

                    mark 1 Reply Last reply Reply Quote 0
                    • mark
                      mark @DillTheKraut last edited by

                      @dillthekraut said:

                       Sorry Marc, if I'm intervening here, with all respect but i think the support article is a bit misleading about the multicast point!

                       OK, well that's good to know. I had several situations where using a switch did not allow multicasting, but a router with the same computers did. 

                      Does anyone else know about this? I don't want to doubt dill, but I must admit I was basing this solely on experience.

                      Best Wishes,
                      Mark

                      Media Artist & Creator of Isadora
                      Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

                      D 1 Reply Last reply Reply Quote 0
                      • D
                        DillTheKraut @mark last edited by

                        @mark

                        As I understand it, routers only handle multicast between the LAN and WAN ports. If you have a router with multiple LAN, it most times is just a simple HUB function between them. Especially at cheeper ones.

                        About the switches, there are some 'simple' 5 or 8 port switches that looks just exactly like little small hubs or switches without any extras. These are not much more expensive than those, but are so called managed switches instead. These got an own IP address reachable by Web Interface or special manufacturer software. These switches have the possibility of priority settings or even port trunking or VLAN support. These switches are known to have issues with multicast handling, if they don't support igmp.

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                        • Woland
                          Woland Tech Staff last edited by

                          Just because it's relevant for this topic, in case other people in future need this info, here's a step-by-step tutorial for making multiple Isadora Computers communicate over Net Broadcasters or OSC

                          LINK

                          Best wishes,

                          Woland

                          TroikaTronix Technical Support
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