Silicon Labs HubZ Smart Home Controller HUSBZB-1 not working

Configuration Z-Wave
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I have ny zwave controller working with home assistant for quite a while. On a recent reboot I could not start zwaveMQTT becuase the tty/usb00 seems to be missing. I did an LSUSB and I do see the device Bus 001 Device 004: ID 10c4:8a2a Silicon Labs HubZ Smart Home Controller but there is no dev/tty/usb0 when I look at the directory. It looks as if the drivers are gone but I cant seem to get this to work. Any help would be appreciated.

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Have you tried physically removing and reinstalling the device? What platform are you installed on (VM, bare metal, Pi)?

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I have tried that. I am install on Ubuntu version

Description: Ubuntu 20.04.6 LTS
Release: 20.04
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and what type of install?

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I actually reinstalled the OS and got it working.

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Did you have it installed as HAOS - using Ubuntu intially? I have that on an N100 mini PC and can’t get my Silicon Labs HubZ Smart Home Controller to work with Zigbee2Mqtt either. I see tty/USBO though in hardware. I understand you installed the entire OS again - were you able to restore a backup? Or were you setting up for the first time?
I’m trying to move from ZHA integration. Disabled and deleted the integration, rebooted the os and the Z2M addon says
Error Resource temporarily unavailable Cannot lock port [2025-12-01 19:03:26] error: zh:ezsp:ezsp: Connection attempt 3 error: Error: Error Resource temporarily unavailable Cannot lock port [2025-12-01 19:03:41] error: zh:ezsp:ezsp: Connection attempt 4 error: Error: Error Resource temporarily unavailable Cannot lock port [2025-12-01 19:03:41] error: z2m: Error while starting zigbee-herdsman 2025-12-01 19:03:41] error: z2m: Failed to start zigbee-herdsman [2025-12-01 19:03:41] error: z2m: Check Zigbee2MQTT fails to start/crashes runtime | Zigbee2MQTT for possible solutions.
I went to the url given but don’t see anything that looks like it will help. I see that I can update the stick to ember from ezsp but don’t know how or how hard that would be on an already working install. I would appreciate it if you’d let me know if reinstalling HAOS is a worthwhile path to pursue. Thanks