• DepthAI
  • No depth ai devices found - wsl2 - ping works

Hi @SarveshRathi
How about the other side (the HyperV FW)? https://learn.microsoft.com/en-us/windows/security/operating-system-security/network-security/windows-firewall/hyper-v-firewall

Make sure to also check the route tables if the traffic gets routed correctly. When not specifying the device IP when calling dai.Device() the library will send a broadcast which will not be received if there are issues with the subnet. When providing IP, this will be skipped and should work outside subnets iirc.

Thanks,
Jaka

    jakaskerl

    I think that worked. Now I am getting a new error message.

    RuntimeError: Failed to find device after booting, error message: X_LINK_DEVICE_NOT_FOUND

      @SarveshRathi

      SarveshRathi Failed to find device after booting

      This usually signifies a power issue, could you check you are getting enough power? I found I have this issue when using injector instead of POE switch.

      You might learn more by inspecting the network traffic to see if it gets routed correctly.

      Thanks,
      Jaka

        Thanks jakaskerl

        Ok. So the issue is resolved.

        I had to add the ip in same subnet.

        sudo ip addr add 192.168.50.X/24 dev eth0

        where x can be any number

        How do I inspect the network traffic? Since right now I can connect the camera through the injector, but as soon as I move it crashes.

          Hi @SarveshRathi
          Great!

          SarveshRathi How do I inspect the network traffic?

          I usually use wireshark to check the traffic.

          SarveshRathi Since right now I can connect the camera through the injector, but as soon as I move it crashes.

          What do you mean by as soon as I move it? Have you tried using a switch instead?

          Thanks,
          Jaka

            jakaskerl

            How does this look?

            This is the current output

            RuntimeError: Failed to connect to device, error message: X_LINK_DEVICE_NOT_FOUND

            Hi @SarveshRathi
            This looks ok as long as the switch is rated correctly (https://docs.luxonis.com/projects/hardware/en/latest/pages/guides/powering_poe_devices/#poe-switch-or-injector). You don't need the switch inbetween since it does nothing essentially. My suggestion was to use a POE switch, which can be used directly - without the POE injector to power the camera.

            I still don't understand what you mean by "as soon as I move it crashes". Do you suspect a bad contact issue?

            Thanks,
            Jaka

              jakaskerl The Se 3005 switch does not support POE. So I have to use the midspan injector which is rated Single port 95 Watt/55V DC/1.73A, 802.3at. This should work right?

              Im not sure what is the issue exactly, but right now it finds the device then returns RuntimeError: Failed to connect to device, error message: X_LINK_DEVICE_NOT_FOUND

              Hi @SarveshRathi
              As long as you can see the lights on the ETH port, the layer 2 network devices should have no problem correctly routing the traffic, so I'll assume the issue is still on the PC.

              Does pinging work in this setup? Check the traffic or tracert function to see if correct routes are used.

              Thanks,
              Jaka

                jakaskerl I dont see a light at ETH port, but the POE and power indications are on. Ping works.

                Traceroute shows 0.2ms 0.003ms 0.003ms

                  SarveshRathi

                  jakaskerl When not specifying the device IP when calling dai.Device() the library will send a broadcast which will not be received if there are issues with the subnet. When providing IP, this will be skipped and should work outside subnets iirc.

                  dai.Device(pipeline, deviceInfo=dai.DeviceInfo("IP of your device"), maxUsbSpeed=dai.UsbSpeed.SUPER)

                  And you are using the IP to connect to the device? I don't see why this wouldn't work then, unless there are firewall issues.

                  Thanks,
                  Jaka

                    jakaskerl I think the midspan injector meets the rating requirements. So i feel it shouldnt hamper the connectivity issues. Does it boil down to firewall based on all the debugging done above? if yes, how do you suggest I start debugging?

                    6 days later

                    jakaskerl No it does not.

                    Based on our discussion,

                    Could you please summarize steps in order that I should check?

                    How about trying with a super simple script like this one that reads the IMU version? Just replace the line in it that Jaka provided above to set the IP address for the device and see what it comes back with.