Hello and welcome to the forums @bernalbenson
How are you trying to set up? The newer computers don't need the dongle, but the older systems do. My Windows 8.1 needs a dongle.
If you're syncing with a mobile device, you won't need the dongle.
contact customer support at this link - click
There is a phone number for the USA, an online chat option and web based email for those out of the area.
Keep us informed.