# Stubborn Conbee 2 refuses to connect, broken? **URL:** \ **Category:** Dresden-Elektronik Hardware\ **Created:** [November 4, 2024, 10:10pm UTC](https://forum.phoscon.de/t/stubborn-conbee-2-refuses-to-connect-broken/5844 "2024-11-04T22:10:16Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![steve](https://forum.phoscon.de/letter_avatar_proxy/v4/letter/s/f19dbf/32.png) [@steve](https://forum.phoscon.de/u/steve)\ **Post date:** [November 4, 2024, 10:10pm UTC](https://forum.phoscon.de/t/stubborn-conbee-2-refuses-to-connect-broken/5844/1 "2024-11-04T22:10:16Z")
Hi there, Having a hard time getting a Conbee 2 to work. My idea was to make a Zigbee gateway with a Raspberry pi1 I still had lying around using RaspBEE. As I couldnt make any connections, I decided to test the ConBEE on my W10 laptop with DeCONZ. Whatever I try, the ConBEE 2 refuses to be connected. It is recognised in W10 as COM3 and found as device in DeConz, but no connection. Tried several usb ports, extender cable and powered usb extender, nothing works ![cb1](https://forum.phoscon.de/uploads/default/original/2X/3/3fa43f87cc29d980f9f80bdb72ac8ca8d3641ec2.jpeg) ![cb1b](https://forum.phoscon.de/uploads/default/original/2X/9/9127b370f8d5804ee92c2cc4820ac880e49cfd84.jpeg) I remember that I had the Conbee tested and running on my old laptop incl. pairing with a device. After that it was kept in a drawer for later use, meaning now. So I guess its not broken or anything. Any ideas to get the ConBEE going? Should I try to flash the firmware? Thanks in advance Steve ---
**Author:** ![Smanar](https://forum.phoscon.de/user_avatar/forum.phoscon.de/smanar/32/60_2.png) [@Smanar](https://forum.phoscon.de/u/Smanar)\ **Post date:** [November 5, 2024, 5:29pm UTC](https://forum.phoscon.de/t/stubborn-conbee-2-refuses-to-connect-broken/5844/2 "2024-11-05T17:29:29Z")
Hello, If the gateway have already worked, I don’t see why it can not working after a while. It’s not something you can “broke” Not a driver issue ? how it look on the “device manager” (I m not sure for the name in english, but it’s the part on window setup where you can see all your devices/hardware). And yes it’s the good device that is detected ```auto Path | Vendor | Product | Serial | Type -----------------+--------+---------+------------+------- /dev/ttyACM1 | 0x1CF1 | 0x0030 | DE2212065 | ConBee II ``` Power issue ? ---
**Author:** ![manup](https://forum.phoscon.de/user_avatar/forum.phoscon.de/manup/32/9_2.png) [@manup](https://forum.phoscon.de/u/manup)\ **Post date:** [November 11, 2024, 3:26pm UTC](https://forum.phoscon.de/t/stubborn-conbee-2-refuses-to-connect-broken/5844/3 "2024-11-11T15:26:53Z")
Maybe it has a different firmware on it (sniffer firmware) or the firmware is not working. I’d suggest flashing a fresh stable firmware to the ConBee II as descibed in: [https://github.com/dresden-elektronik/deconz-rest-plugin/wiki/Update-deCONZ-manually#update-in-windows](https://github.com/dresden-elektronik/deconz-rest-plugin/wiki/Update-deCONZ-manually#update-in-windows) ---
**Author:** ![Loeschl](https://forum.phoscon.de/letter_avatar_proxy/v4/letter/l/6a8cbe/32.png) [@Loeschl](https://forum.phoscon.de/u/Loeschl)\ **Post date:** [November 12, 2024, 10:59am UTC](https://forum.phoscon.de/t/stubborn-conbee-2-refuses-to-connect-broken/5844/4 "2024-11-12T10:59:37Z")
Do you have the conbee on a 1,5 meter usb-cable. its necessary, cause they will have interference between the stick and the wlan. ---
**Author:** ![steve](https://forum.phoscon.de/letter_avatar_proxy/v4/letter/s/f19dbf/32.png) [@steve](https://forum.phoscon.de/u/steve)\ **Post date:** [November 13, 2024, 2:01pm UTC](https://forum.phoscon.de/t/stubborn-conbee-2-refuses-to-connect-broken/5844/5 "2024-11-13T14:01:42Z")
Hy Smanar, I don’t think so. Same results with powered USB hub ---
**Author:** ![steve](https://forum.phoscon.de/letter_avatar_proxy/v4/letter/s/f19dbf/32.png) [@steve](https://forum.phoscon.de/u/steve)\ **Post date:** [November 13, 2024, 2:03pm UTC](https://forum.phoscon.de/t/stubborn-conbee-2-refuses-to-connect-broken/5844/6 "2024-11-13T14:03:55Z")
Hi Loeschl, yes i’m using the usb extender cable that i ordered with the Conbee II ---
**Author:** ![steve](https://forum.phoscon.de/letter_avatar_proxy/v4/letter/s/f19dbf/32.png) [@steve](https://forum.phoscon.de/u/steve)\ **Post date:** [November 13, 2024, 2:13pm UTC](https://forum.phoscon.de/t/stubborn-conbee-2-refuses-to-connect-broken/5844/7 "2024-11-13T14:13:49Z")
Path | Serial | Type ------------------±------------±-------------- COM3 | DE2675961 | ConBee II PS C:\Users\a\Downloads\GCFFlasher\_Win\_V4\_04\_00\GCFFlasher\_Win\_V4\_04\_00\> looking good, right? ---
**Author:** ![steve](https://forum.phoscon.de/letter_avatar_proxy/v4/letter/s/f19dbf/32.png) [@steve](https://forum.phoscon.de/u/steve)\ **Post date:** [November 13, 2024, 3:21pm UTC](https://forum.phoscon.de/t/stubborn-conbee-2-refuses-to-connect-broken/5844/8 "2024-11-13T15:21:18Z")
UPDATE: after flashing the ConBEE again, it re-appeared and functional!!