New conbee2 usb stick reconnect every time

deCONZ Setup Support
1

Hi!

I try to setup my new conbee2 stick. But it have a strange behavior. When I connect the stick to one of my systems, the stick connect and de-connect every 10 seconds!

I see this on:

  • Banana PI M5 (Ubuntu 20.04.5 LTS (GNU/Linux 4.9.312-BPI-M5 aarch64))
  • Thinkpad T450s ArchLinux (Linux augustus 5.19.10-arch1-1 #1 SMP PREEMPT_DYNAMIC Tue, 20 Sep 2022 15:17:59 +0000 x86_64 GNU/Linux)
  • Thinpad T14 Windows10

The lsusb show the stick while connection established.

I readed some solutions to update the firmware. But I don’t think, this will work in 10 secounds.

I’ve no idea whats going wrong!

Is the stick booting every time? Is there a hardwareproblem?

Many thanks!

Regards from Cologne
Thomas

Kernellog from ArchLinux:

Okt 10 17:49:02 augustus kernel: usb 2-1: new full-speed USB device number 30 using xhci_hcd
Okt 10 17:49:02 augustus kernel: usb 2-1: New USB device found, idVendor=1cf1, idProduct=0030, bcdDevice= 1.00
Okt 10 17:49:02 augustus kernel: usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Okt 10 17:49:02 augustus kernel: usb 2-1: Product: ConBee II
Okt 10 17:49:02 augustus kernel: usb 2-1: Manufacturer: dresden elektronik ingenieurtechnik GmbH
Okt 10 17:49:02 augustus kernel: usb 2-1: SerialNumber: DE2481484
Okt 10 17:49:02 augustus kernel: cdc_acm 2-1:1.0: ttyACM0: USB ACM device
Okt 10 17:49:05 augustus kernel: usb 2-1: USB disconnect, device number 30
Okt 10 17:49:14 augustus kernel: usb 2-1: new full-speed USB device number 31 using xhci_hcd
Okt 10 17:49:14 augustus kernel: usb 2-1: New USB device found, idVendor=1cf1, idProduct=0030, bcdDevice= 1.00
Okt 10 17:49:14 augustus kernel: usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Okt 10 17:49:14 augustus kernel: usb 2-1: Product: ConBee II
Okt 10 17:49:14 augustus kernel: usb 2-1: Manufacturer: dresden elektronik ingenieurtechnik GmbH
Okt 10 17:49:14 augustus kernel: usb 2-1: SerialNumber: DE2481484
Okt 10 17:49:14 augustus kernel: cdc_acm 2-1:1.0: ttyACM0: USB ACM device
Okt 10 17:49:17 augustus kernel: usb 2-1: USB disconnect, device number 31
Okt 10 17:49:26 augustus kernel: usb 2-1: new full-speed USB device number 32 using xhci_hcd
Okt 10 17:49:26 augustus kernel: usb 2-1: New USB device found, idVendor=1cf1, idProduct=0030, bcdDevice= 1.00
Okt 10 17:49:26 augustus kernel: usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Okt 10 17:49:26 augustus kernel: usb 2-1: Product: ConBee II
Okt 10 17:49:26 augustus kernel: usb 2-1: Manufacturer: dresden elektronik ingenieurtechnik GmbH
Okt 10 17:49:26 augustus kernel: usb 2-1: SerialNumber: DE2481484
Okt 10 17:49:26 augustus kernel: cdc_acm 2-1:1.0: ttyACM0: USB ACM device
2

Hi,

Have you already done a search on this forum ? There are several posts for this kind of issue, ie https://forum.phoscon.de/t/conbee-ii-periodically-disconnecting/510

3

Thank you for your reply!

Yes, I have found these entries. But for me, it looks a little different.

There it is recommended to update the firmware. But my stick is not connected for so long! So it is not accessible to reflash it.

I also tried with and without extension cable. No change.

The Banana Pi also has only USB3 ports. There is no change in behavior to my Thinkpad with USB2.

Regards
Thomas

4

Hi,

Just try to update the firmware. Your best off using windows for this. In that 10 seconds, it should take it.

5

Success!! At the end, i had 5 secounds. I had not thought! But it works!!

Many thanks! Now the stick is still available.

Regards
Thomas

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