With a little free ware tool you might be able to get a few more information about what is going on.
Download the tool USBDeview (Freeware):
http://www.nirsoft.net/utils/usb_devices_view.html (scroll down for the download links)
When you run the program it will show you all USB devices that are currently attached and have been attached in the past. There is a column called VendorID. Click on its name to sort the list and look for devices with the ID "0c70". This is the ID for our devices. Delete all entries with this ID by selecting them and clicking on the trash can icon in the upper left corner. Just confirm the request to delete the entry.
When you now unplug the aquaero and plug it in again a new entry for this device should appear (ID 0c70 again). Currently connected devices are also highlighted with a green background and have a green dot in front of their name.
If the aquaero is detected, run the aquasuite setup and check if the device is shown in the lower box with the attached devices. It must also show the serial number. If it only shows the aquaero but without serial number, you still have a communication problem between the board and the aquaero.
Just in case you are using the aquaero together with a USB hub: it is very likely that it is the cause of the problem. Try to connect the aquaero directly to the mainboard.