USB Bluetooth dongle gets frequently disconnected

Hello,

I’m running HA 2022.10.0 on a Vbox machine to which a usb dongle is plugged in (asus bt-500). Bluetooth integration is setup and enabled. However the following error is frequently reported

hci0 (04:42:1A:5A:48:62): Error stopping scanner: [org.bluez.Error.Failed] No discovery started
7:13:57 AM – (ERROR) Bluetooth - message first occurred at 7:04:57 AM and shows up 5 times

As a result, it makes iBeacon failing all the time. I’m without ideas on how to troubleshoot it. Any ideas?
Thank you