I'm trying to ping the pi from cmd but i get Destination host unreachable. And there are random crashes throughout the day. I'm using putty to connect to the pi. Device : oak d poe

Hi @"krishnashravan"#p6665 , OAK-D-PoE doesn't have integrated RPi. Please see [Getting started with OAK PoE devices](Getting started with OAK PoE devices) docs. Thanks, Erik

Hello erik, Thanks for replying.i got the model wrong. It was a OAK-D CM4 PoE.

Still have the issue any solution?

Hi @"krishnashravan"#p6701 , Could you please provide some terminal logs, and also IP scans that indicate what's the IP of your computer and of the Pi? Thanks, Erik

[URL=https://i.imgur.com/WzuGfih.png][IMG]https://i.imgur.com/WzuGfih.png[/IMG][/URL] [URL=https://i.imgur.com/TnZPjn2.png][IMG]https://i.imgur.com/TnZPjn2.png[/IMG][/URL] These are the terminal logs for almost two days now i'm getting destination host unreachable.

Hi @"krishnashravan"#p7044 , Well the RPi CM4 is not at that IP apparently. Perhaps try IP scanner, check router logs (connected devices), or check [SSH into RPi docs](https://docs.luxonis.com/projects/hardware/en/latest/pages/guides/raspberrypi.html#ssh-into-the-rpi); `ssh pi@luxonis.local -X` should be possible. Thanks, Erik

[URL=https://i.imgur.com/QkZwRLr.png][IMG]https://i.imgur.com/QkZwRLr.png[/IMG][/URL] This is just now its just that when the pi crashes that ip becomes unreachable It crashes at random and comes back up

@"krishnashravan"#p7062 is it perhaps a crash due to power issues (undervoltage)?

[URL=https://i.imgur.com/w7kAVKb.png][IMG]https://i.imgur.com/w7kAVKb.png[/IMG][/URL] thanks erik for the reply anywhere to check if it has any undervoltage issues?

Cant connect to the raspberry pi

erik

Hi krishnashravan ,

Well the RPi CM4 is not at that IP apparently. Perhaps try IP scanner, check router logs (connected devices), or check SSH into RPi docs; ssh pi@luxonis.local -X should be possible.

Thanks, Erik

krishnashravan

This is just now
its just that when the pi crashes that ip becomes unreachable
It crashes at random and comes back up

erik

krishnashravan is it perhaps a crash due to power issues (undervoltage)?

krishnashravan

erik
can u give me a way to check if its undervoltage issue?

krishnashravan

thanks erik for the reply
anywhere to check if it has any undervoltage issues?

krishnashravan

my use case is basically
running a node app to run the site on the pi's address
and running a python file for people counting
i observed that when i run the python file
the ping goes up alot and eventually crash(destination host unreachable) or timeout

jakaskerl

Hi krishnashravan
Sounds like a bandwidth issue then.. I assume ping goes up because the pipeline sends results back to rpi, which saturates its bandwidth and it's therefore unable to return pings, and then it crashes since the server probably times out. Can you confirm you are sending large/high res video back to the rpi?

Thanks,
Jaka

krishnashravan

jakaskerl

Yes the video is high res

But when i run it manually (change to a particular directory and then execute) less changes of crashing)

But when i run it using a bat file to run the node app or the video python file more chances of failling

jakaskerl

Hi krishnashravan
I'm not entirely sure how you are running the scripts (using bat file / manual?). Maybe try lowering the resolution of the video you are sending via ethernet to see if that is the cause.

Thanks,
Jaka

erik

krishnashravan if it "starts to crash" when you start your app, it might be related to the app itself - have you tried debugging it? What's the RAM / CPU usage of the RPi before/after you start the app? Perhaps some memory leak that causes the whole system to crash?

krishnashravan

erik
I have decreased the no of crashes
by just manually logging to the pi and run the node and python file
but it does crash at times
is it because it overloads the pi?
i have no issue when i run the same code on the oak d (the one without the pi)

erik

Hi krishnashravan ,

is it because it overloads the pi?

That would be my initial guess, but I'd suggest you debug the code (checking CPU/RAM consumption).