Thanks for letting us know! Just for clarity, I omitted the device ID and order number you provided in your post since this is a public forum.
I’ve pulled up your sensor, and I do see that it’s currently offline as well. If you’re not seeing a serial port connection from the device in the Utility, I’d suggest ensuring that you have a USB cable capable of data transfer, as opposed to just charging, especially if there’s a red LED indicating power.
If checking the cable and drivers has been unsuccessful, and that red LED is consistently stable, we could take a look at the sensor or provide a quote on replacement parts.
Please reach out to us at contact@purpleair.com referencing this community post, and we’ll share some information to get things moving for you. Thank you!