It was an ethernet cable before. Slower but these random crashes were not happening.
What distro are you running?
3 minutes into the second season of Squid Game and the protagonist realises heās being tracked without his knowledge so he feels around and discovers he has something behind his ear. Digs it out with a box cutter and itās a glassie.
Here we go againā¦ More fodder for the tinfoil hat brigade!
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Let then have their fun on this. Better they focus on something they cannot change, than something they can.
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im running Debian (raspi) 12 (bookworm) with a fresh install (and SD) and a fresh update all on a pi4B+
I see the camera though: v4l2-ctl --list-devices
rpivid (platform:rpivid):
/dev/video19
/dev/media0
But libcamera-vid --list-cameras doesnt list anything
No cameras available!
Im getting lost, i followed the direction from Arducam a few time, and tried it on a different SD (fresh install) with no success. Also tried a different Pi, at this point, the only hardware i have not changed is the camera itself ā¦
The āShow off using implantsā thread is a vid only, so hereās just a picā¦ FlexSecure (Kongās skateboard, cloned to my Yubikey), a reader under the DiY desk, and a MFGC under the padā¦
Type in KeePassXC password, roll my arm a bit to the side until it beeps then click Unlock. Itās far enough off to the side it doesnāt accidentally scan. Reader is stickied upside down so the MFGC is needed to scan from the top side. Itāll read from about 1.5" above the desk.
Much easier than trying to cross-arm and scan my ApexFlex in the back of my left hand.
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Under desk reader gang!!!
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A life sentence? 
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Approximatelyā¦
-
Five eagle feathers
-
A stack of 12 regular playing cards
-
120 red fire ants
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Six average-sized cherry tomatoes
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Three shiny petticoat buttons
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@StarGazer1258 might have some ideas, he does networking professionally. Iāve dabbled but wanted to put my head through the wall when implementing vlans. Props to network engineers, shits not easy
All preferable to any metric unit(s).
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Iām looking into this. The DAC cable that I have claims to be passive and SFP+ is supposed to be a standard.
I have a hypothesis regarding the ip neighbors functionality since I had a long name configured on the SFP+ interface of the router. I guess that I could try a shorter name or disabling this feature for the time being.
And if thatās the case, I should look into disabling that on the switchā¦ Iām kinda hoping that itās not something with a vulnerability smellā¦
I was summoned?
Donāt know much about Zyxel switches. Iāve only encountered one in my career so far.
That said, my suggestions would be:
- Check logs, on both switches.
- Also check error counters on the interface, both sides.
- Since you mentioned itās a passive cable, how long is the cable? Passive DAC cables are only really good for short distances. ~6m max, IIRC.
- Whatās the brand of cable as well, some cheap brands might be prone to failures or DOAs.
- Definitely see if you can find compatibility matrixes for your switch/cable. Sometimes certain manufacturers can be picky. There may be a configuration option to override compatibly warnings, but that wonāt guarantee that it will work.
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Will do, hopefully the zyxel doesnāt log to ram.
1ā
āipolexā I assume that this is a no name Chinese brand.
It worked without any warnings, but I was getting weird crashes with that cable so Iām back to a regular ethernet cable for the time being. Iāll rename the interfaces hoping that Iām right and try again. After checking the logging configuration, of course. 
Not sure but could be a faulty cable.
I got my DAC cables from fs.com, Iād recommend them for sure.
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For shits and giggles:
1-Inspect and reseat your ribbon cable
2-With a different SD card, install raspi-OS or whatever thatās called these days, just see if that happens to pick it up. If you donāt have a different card, this is not critical, but could help.
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Ive tried it a few time, but i get teh exact same result ā¦ even tried a different pi just in case (I donāt have another arducam to test). That why im thinking i am missing something ā¦ (probably dumb once i figure it out)