Have you ever encountered such a problem
I connected mk3s + to the PC, and then prompted that the hardware could not be recognized. Then I rewrote the driver and official firmware for mk3s +, and octoprint can be connected. It's been used normally for several days. Today, it can't be connected as before
2022-09-03 13:41:00,635 - serial.log is currently not enabled, you can enable it via Settings > Serial Connection > Log communication to serial.log
2022-09-03 13:44:26,615 - serial.log is currently not enabled, you can enable it via Settings > Serial Connection > Log communication to serial.log
2022-09-03 13:46:35,453 - serial.log is currently not enabled, you can enable it via Settings > Serial Connection > Log communication to serial.log
2022-09-04 10:15:44,885 - serial.log is currently not enabled, you can enable it via Settings > Serial Connection > Log communication to serial.log
2022-09-05 03:34:15,539 - serial.log is currently not enabled, you can enable it via Settings > Serial Connection > Log communication to serial.log
2022-09-05 05:06:17,937 - serial.log is currently not enabled, you can enable it via Settings > Serial Connection > Log communication to serial.log
2022-09-05 07:02:22,013 - Enabling serial logging
2022-09-06 12:48:39,650 - Changing monitoring state from "Offline" to "Opening serial connection"
2022-09-06 12:48:39,661 - Connecting to port /dev/ttyACM0, baudrate 115200
2022-09-06 12:48:39,690 - Changing monitoring state from "Opening serial connection" to "Connecting"
2022-09-06 12:48:39,694 - Connected to: Serial<id=0x6a247fb0, open=True>(port='/dev/ttyACM0', baudrate=115200, bytesize=8, parity='N', stopbits=1, timeout=10.0, xonxoff=False, rtscts=False, dsrdtr=False), starting monitor
2022-09-06 12:48:39,705 - Send: N0 M110 N0125
2022-09-06 12:48:52,646 - Recv: start
2022-09-06 12:48:52,660 - Send: N0 M110 N0125
2022-09-06 12:48:52,715 - Recv: ;S
2022-09-06 12:48:52,765 - Recv: ;S
2022-09-06 12:48:52,818 - Recv: ;S
2022-09-06 12:48:52,871 - Recv: ;S
2022-09-06 12:48:52,921 - Recv: ;S
2022-09-06 12:48:52,928 - Recv: SN update failed
2022-09-06 12:48:52,933 - Recv: echo: 3.11.0-4955
2022-09-06 12:48:52,938 - Recv: echo: Last Updated: Apr 7 2022 11:09:51 | Author: (none, default config)
2022-09-06 12:48:52,943 - Recv: Compiled: Apr 7 2022
2022-09-06 12:48:52,948 - Recv: echo: Free Memory: 2066 PlannerBufferBytes: 1760
2022-09-06 12:48:52,952 - Recv: echo:Hardcoded Default Settings Loaded
2022-09-06 12:48:52,956 - Recv: adc_init
2022-09-06 12:48:54,326 - Recv: Extruder fan type: ALTFAN
2022-09-06 12:48:54,330 - Recv: CrashDetect ENABLED!
2022-09-06 12:48:55,427 - Recv: FSensor ENABLED (sensor board revision: 0.4 or newer)
2022-09-06 12:48:55,615 - Recv: Sending 0xFF
2022-09-06 12:48:55,623 - Recv: echo:SD card ok
2022-09-06 12:48:56,127 - Recv: LCD status changed
2022-09-06 12:48:58,152 - Recv: RX timeout
2022-09-06 12:49:22,535 - Recv: MMU not responding - DISABLED
2022-09-06 12:49:52,571 - There was a timeout while trying to connect to the printer
2022-09-06 12:49:52,577 - Changing monitoring state from "Connecting" to "Offline"
2022-09-06 12:49:52,580 - Connection closed, closing down monitor
2022-09-06 12:58:14,372 - Changing monitoring state from "Offline" to "Opening serial connection"
2022-09-06 12:58:14,384 - Connecting to port /dev/ttyACM0, baudrate 115200
2022-09-06 12:58:14,411 - Changing monitoring state from "Opening serial connection" to "Connecting"
2022-09-06 12:58:14,415 - Connected to: Serial<id=0x6a21b290, open=True>(port='/dev/ttyACM0', baudrate=115200, bytesize=8, parity='N', stopbits=1, timeout=30.0, xonxoff=False, rtscts=False, dsrdtr=False), starting monitor
2022-09-06 12:58:14,428 - Send: N0 M110 N0125
2022-09-06 12:58:27,385 - Recv: start
2022-09-06 12:58:27,399 - Send: N0 M110 N0125
2022-09-06 12:58:27,455 - Recv: ;S
2022-09-06 12:58:27,507 - Recv: ;S
2022-09-06 12:58:27,557 - Recv: ;S
2022-09-06 12:58:27,609 - Recv: ;S
2022-09-06 12:58:27,661 - Recv: ;S
2022-09-06 12:58:27,666 - Recv: SN update failed
2022-09-06 12:58:27,672 - Recv: echo: 3.11.0-4955
2022-09-06 12:58:27,677 - Recv: echo: Last Updated: Apr 7 2022 11:09:51 | Author: (none, default config)
2022-09-06 12:58:27,683 - Recv: Compiled: Apr 7 2022
2022-09-06 12:58:27,688 - Recv: echo: Free Memory: 2066 PlannerBufferBytes: 1760
2022-09-06 12:58:27,692 - Recv: echo:Hardcoded Default Settings Loaded
2022-09-06 12:58:27,697 - Recv: adc_init
2022-09-06 12:58:29,064 - Recv: Extruder fan type: ALTFAN
2022-09-06 12:58:29,076 - Recv: CrashDetect ENABLED!
2022-09-06 12:58:30,166 - Recv: FSensor ENABLED (sensor board revision: 0.4 or newer)
2022-09-06 12:58:30,354 - Recv: Sending 0xFF
2022-09-06 12:58:30,363 - Recv: echo:SD card ok
2022-09-06 12:58:30,866 - Recv: LCD status changed
2022-09-06 12:58:32,890 - Recv: RX timeout
2022-09-06 12:58:57,274 - Recv: MMU not responding - DISABLED
2022-09-06 12:59:27,309 - There was a timeout while trying to connect to the printer
2022-09-06 12:59:27,321 - Changing monitoring state from "Connecting" to "Offline"
2022-09-06 12:59:27,334 - Connection closed, closing down monitor
2022-09-06 13:00:46,676 - Changing monitoring state from "Offline" to "Opening serial connection"
2022-09-06 13:00:46,690 - Connecting to port /dev/ttyACM0, baudrate 115200
2022-09-06 13:00:46,715 - Changing monitoring state from "Opening serial connection" to "Connecting"
2022-09-06 13:00:46,719 - Connected to: Serial<id=0x6a0be370, open=True>(port='/dev/ttyACM0', baudrate=115200, bytesize=8, parity='N', stopbits=1, timeout=30.0, xonxoff=False, rtscts=False, dsrdtr=False), starting monitor
2022-09-06 13:00:46,731 - Send: N0 M110 N0125
2022-09-06 13:00:59,705 - Recv: start
2022-09-06 13:00:59,721 - Send: N0 M110 N0125
2022-09-06 13:00:59,775 - Recv: ;S
2022-09-06 13:00:59,827 - Recv: ;S
2022-09-06 13:00:59,880 - Recv: ;S
2022-09-06 13:00:59,930 - Recv: ;S
2022-09-06 13:00:59,983 - Recv: ;S
2022-09-06 13:00:59,989 - Recv: SN update failed
2022-09-06 13:00:59,995 - Recv: echo: 3.11.0-4955
2022-09-06 13:01:00,001 - Recv: echo: Last Updated: Apr 7 2022 11:09:51 | Author: (none, default config)
2022-09-06 13:01:00,007 - Recv: Compiled: Apr 7 2022
2022-09-06 13:01:00,013 - Recv: echo: Free Memory: 2066 PlannerBufferBytes: 1760
2022-09-06 13:01:00,018 - Recv: echo:Hardcoded Default Settings Loaded
2022-09-06 13:01:00,024 - Recv: adc_init
2022-09-06 13:01:01,388 - Recv: Extruder fan type: ALTFAN
2022-09-06 13:01:01,400 - Recv: CrashDetect ENABLED!
2022-09-06 13:01:02,485 - Recv: FSensor ENABLED (sensor board revision: 0.4 or newer)
2022-09-06 13:01:02,675 - Recv: Sending 0xFF
2022-09-06 13:01:02,686 - Recv: echo:SD card ok
2022-09-06 13:01:03,186 - Recv: LCD status changed
2022-09-06 13:01:05,209 - Recv: RX timeout
2022-09-06 13:01:29,594 - Recv: MMU not responding - DISABLED
2022-09-06 13:01:59,630 - There was a timeout while trying to connect to the printer
2022-09-06 13:01:59,642 - Changing monitoring state from "Connecting" to "Offline"
2022-09-06 13:01:59,666 - Connection closed, closing down monitor
2022-09-06 13:02:36,559 - Changing monitoring state from "Offline" to "Opening serial connection"
2022-09-06 13:02:36,571 - Connecting to port /dev/ttyACM0, baudrate 115200
2022-09-06 13:02:36,597 - Changing monitoring state from "Opening serial connection" to "Connecting"
2022-09-06 13:02:36,601 - Connected to: Serial<id=0x68d7bc70, open=True>(port='/dev/ttyACM0', baudrate=115200, bytesize=8, parity='N', stopbits=1, timeout=30.0, xonxoff=False, rtscts=False, dsrdtr=False), starting monitor
2022-09-06 13:02:36,614 - Send: N0 M110 N0125
2022-09-06 13:02:49,580 - Recv: start
2022-09-06 13:02:49,594 - Send: N0 M110 N0125
2022-09-06 13:02:49,649 - Recv: ;S
2022-09-06 13:02:49,703 - Recv: ;S
2022-09-06 13:02:49,752 - Recv: ;S
2022-09-06 13:02:49,805 - Recv: ;S
2022-09-06 13:02:49,859 - Recv: ;S
2022-09-06 13:02:49,864 - Recv: SN update failed
2022-09-06 13:02:49,869 - Recv: echo: 3.11.0-4955
2022-09-06 13:02:49,874 - Recv: echo: Last Updated: Apr 7 2022 11:09:51 | Author: (none, default config)
2022-09-06 13:02:49,880 - Recv: Compiled: Apr 7 2022
2022-09-06 13:02:49,885 - Recv: echo: Free Memory: 2066 PlannerBufferBytes: 1760
2022-09-06 13:02:49,891 - Recv: echo:Hardcoded Default Settings Loaded
2022-09-06 13:02:49,896 - Recv: adc_init
2022-09-06 13:02:51,268 - Recv: Extruder fan type: ALTFAN
2022-09-06 13:02:51,275 - Recv: CrashDetect ENABLED!
Could you PLEASE put code snippets between code braces:
Mark the whole block and click that icon.
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