State: Offline (Error: No more candidates to test, and no working port/baudrate combination detected

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1

Camera model

What is the problem?
State: Offline (Error: No more candidates to test, and no working port/baudrate combination detected.)
What did you already try to solve it?
rebooted raspberry pi 4 and still same error. only connects when i restart both printer and rasp pi 4
Logs (/var/log/webcamd.log, syslog, dmesg, ... no logs, no support)
just paste them here??
Additional information about your setup (OctoPrint version, OctoPi version, ...)
octopi v.1.5.2
ender 3 running BIGTREETECH Direct SKR Mini E3 V2.0

this happened after 12+ print. printer just stops moving. and i cannot ping raspberry pi. only after i restart the raspberry pi can i connect to interface but will not connect to printer

2

Let's check if the pi is able to detect your printer at all.

Log into your pi via ssh then disconnect your printer, connect it again, enter dmesg | tail -n 20 and post the output here.

If you need help with the ssh part

Scroll down and start with the Connecting to Your Raspberry Pi over SSH part.
The first part is already done for you in the octopi image.

3

Ok I will do that. So it is able to connect. It was printing over 12 hours and then the nozzle stopped and I noticed I can’t access octo pi. Hit paused on the printer controller and power cycled octopi(while printer paused) then octopi loaded up and couldn’t connect and I get the error. Only when I reboot with printer and octopi does it work again. But I will ssh to pi

4

pi@octopi:~ $ dmesg | tail -n 20
[ 13.878554] NET: Registered protocol family 31
[ 13.878568] Bluetooth: HCI device and connection manager initialized
[ 13.878595] Bluetooth: HCI socket layer initialized
[ 13.878615] Bluetooth: L2CAP socket layer initialized
[ 13.878647] Bluetooth: SCO socket layer initialized
[ 13.891029] Bluetooth: HCI UART driver ver 2.3
[ 13.891049] Bluetooth: HCI UART protocol H4 registered
[ 13.891145] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 13.891479] Bluetooth: HCI UART protocol Broadcom registered
[ 14.070868] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 14.070875] Bluetooth: BNEP filters: protocol multicast
[ 14.070887] Bluetooth: BNEP socket layer initialized
[ 881.423401] usb 1-1.2: USB disconnect, device number 3
[ 881.423773] cdc_acm 1-1.2:1.0: failed to set dtr/rts
[ 901.010850] usb 1-1.2: new full-speed USB device number 4 using xhci_hcd
[ 901.147309] usb 1-1.2: New USB device found, idVendor=1eaf, idProduct=0004, b cdDevice= 2.00
[ 901.147322] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber =0
[ 901.147332] usb 1-1.2: Product: Maple
[ 901.147342] usb 1-1.2: Manufacturer: LeafLabs
[ 901.150079] cdc_acm 1-1.2:1.0: ttyACM0: USB ACM device

5

Alright. That sounds more like a pi problem than a printer problem.

upload the logs - I guess it could be a power related issue