You mentioned There is often confusion with driver versions for this device.
Once installed, open the proprietary dashboard at http://192.168.8.1 or the diagnostic tool. Look for: wifly city idu 2850ug 8g driver 25 exclusive
However, finding the correct and the “exclusive” configuration for the 8G model can feel like a treasure hunt. This post cuts through the noise. You mentioned There is often confusion with driver