Flashforge dreamer nx no more candidates to test and no working port/baudrate combination detected

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1

What is the problem?

When trying to connect to Flashforge Dreamer NX receive following error: No more candidates to test, and no working port/baudrate combination detected.
Here is what Terminal is saying:

Changing monitoring state from "Offline" to "Detecting serial connection"
Performing autodetection with 7 port/baudrate candidates: unknown device, port:1:3@115200, unknown device, port:1:3@250000, unknown device, port:1:3@230400, unknown device, port:1:3@57600, unknown device, port:1:3@38400, unknown device, port:1:3@19200, unknown device, port:1:3@9600
Trying port unknown device, port:1:3, baudrate 115200
Unexpected error while connecting to serial port unknown device, port:1:3, baudrate 115200 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'unknown device, port:1:3'' @ comm.py:_open_serial:3699
Could not open port unknown device, port:1:3, baudrate 115200, skipping
Trying port unknown device, port:1:3, baudrate 250000
Unexpected error while connecting to serial port unknown device, port:1:3, baudrate 250000 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'unknown device, port:1:3'' @ comm.py:_open_serial:3699
Could not open port unknown device, port:1:3, baudrate 250000, skipping
Trying port unknown device, port:1:3, baudrate 230400
Unexpected error while connecting to serial port unknown device, port:1:3, baudrate 230400 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'unknown device, port:1:3'' @ comm.py:_open_serial:3699
Could not open port unknown device, port:1:3, baudrate 230400, skipping
Trying port unknown device, port:1:3, baudrate 57600
Unexpected error while connecting to serial port unknown device, port:1:3, baudrate 57600 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'unknown device, port:1:3'' @ comm.py:_open_serial:3699
Could not open port unknown device, port:1:3, baudrate 57600, skipping
Trying port unknown device, port:1:3, baudrate 38400
Unexpected error while connecting to serial port unknown device, port:1:3, baudrate 38400 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'unknown device, port:1:3'' @ comm.py:_open_serial:3699
Could not open port unknown device, port:1:3, baudrate 38400, skipping
Trying port unknown device, port:1:3, baudrate 19200
Unexpected error while connecting to serial port unknown device, port:1:3, baudrate 19200 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'unknown device, port:1:3'' @ comm.py:_open_serial:3699
Could not open port unknown device, port:1:3, baudrate 19200, skipping
Trying port unknown device, port:1:3, baudrate 9600
Unexpected error while connecting to serial port unknown device, port:1:3, baudrate 9600 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'unknown device, port:1:3'' @ comm.py:_open_serial:3699
Could not open port unknown device, port:1:3, baudrate 9600, skipping
Changing monitoring state from "Detecting serial connection" to "Error"
Changing monitoring state from "Error" to "Offline after error"

What did you already try to solve it?

verified that the flashforge plugin was installed correctly but besides rebooting nothing as i am new to Pi and Octorint

Have you tried running in safe mode?

yes

Did running in safe mode solve the problem?

no

Systeminfo Bundle

You can download this in OctoPrint's System Information dialog ... no bundle, no support!)

browser.user_agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36
connectivity.connection_check: 1.1.1.1:53
connectivity.connection_ok: true
connectivity.enabled: true
connectivity.online: true
connectivity.resolution_check: octoprint.org
connectivity.resolution_ok: true
env.hardware.cores: 4
env.hardware.freq: 1500
env.hardware.ram: 3959984128
env.os.bits: 32
env.os.id: linux
env.os.platform: linux
env.plugins.pi_support.model: Raspberry Pi 4 Model B Rev 1.4
env.plugins.pi_support.octopi_version: 0.18.0
env.plugins.pi_support.throttle_state: 0x0
env.python.pip: 20.3.3
env.python.version: 3.7.3
env.python.virtualenv: true
octoprint.safe_mode: false
octoprint.version: 1.6.1
systeminfo.generator: systemapi
octoprint-systeminfo-20210710212001.zip (41.0 KB)

Additional information about your setup

OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible

Flashforge Dreamer NX

2

Hello @zehnerjo719 !

There is this in your logs:

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Unable to connect to FlashForge printer - permission error.

If you are using OctoPi/Linux add permission to access this device by editing file:
 /etc/udev/rules.d/99-octoprint.rules

and adding the line:
SUBSYSTEM=="usb", ATTR{idVendor}=="2b71", MODE="0666"

You can do this as follows:
1) Connect to your OctoPi/Octoprint device using ssh
2) Type the following to open a text editor:
sudo nano /etc/udev/rules.d/99-octoprint.rules
3) Add the following line:
SUBSYSTEM=="usb", ATTR{idVendor}=="2b71", MODE="0666"
4) Save the file and close the editor
5) Verify the file permissions are set to "rw-r--r--" by typing:
ls -al /etc/udev/rules.d/99-octoprint.rules
6) Reboot your system for the rule to take effect.

<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

For this, you have to ssh into your Pi.

1 Like
3

I did that and now the printer's name showing up in the Serial Port drop-down but still have the following error. Sorry, I am very new to Pi in general so all this might as well be Greek!

Changing monitoring state from "Offline" to "Detecting serial connection"
Performing autodetection with 7 port/baudrate candidates: FlashForge Dreamer NX 3D Printer, port:1:3@115200, FlashForge Dreamer NX 3D Printer, port:1:3@250000, FlashForge Dreamer NX 3D Printer, port:1:3@230400, FlashForge Dreamer NX 3D Printer, port:1:3@57600, FlashForge Dreamer NX 3D Printer, port:1:3@38400, FlashForge Dreamer NX 3D Printer, port:1:3@19200, FlashForge Dreamer NX 3D Printer, port:1:3@9600
Trying port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 115200
Unexpected error while connecting to serial port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 115200 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'FlashForge Dreamer NX 3D Printer, port:1:3'' @ comm.py:_open_serial:3699
Could not open port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 115200, skipping
Trying port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 250000
Unexpected error while connecting to serial port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 250000 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'FlashForge Dreamer NX 3D Printer, port:1:3'' @ comm.py:_open_serial:3699
Could not open port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 250000, skipping
Trying port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 230400
Unexpected error while connecting to serial port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 230400 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'FlashForge Dreamer NX 3D Printer, port:1:3'' @ comm.py:_open_serial:3699
Could not open port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 230400, skipping
Trying port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 57600
Unexpected error while connecting to serial port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 57600 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'FlashForge Dreamer NX 3D Printer, port:1:3'' @ comm.py:_open_serial:3699
Could not open port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 57600, skipping
Trying port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 38400
Unexpected error while connecting to serial port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 38400 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'FlashForge Dreamer NX 3D Printer, port:1:3'' @ comm.py:_open_serial:3699
Could not open port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 38400, skipping
Trying port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 19200
Unexpected error while connecting to serial port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 19200 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'FlashForge Dreamer NX 3D Printer, port:1:3'' @ comm.py:_open_serial:3699
Could not open port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 19200, skipping
Trying port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 9600
Unexpected error while connecting to serial port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 9600 from hook GPX: FileNotFoundError: '[Errno 2] No such file or directory: 'FlashForge Dreamer NX 3D Printer, port:1:3'' @ comm.py:_open_serial:3699
Could not open port FlashForge Dreamer NX 3D Printer, port:1:3, baudrate 9600, skipping
Changing monitoring state from "Detecting serial connection" to "Error"
Changing monitoring state from "Error" to "Offline after error"