activation

Hi, I am completely new to this so don’t laugh. I have tried to enter my activation code, but a message says that no elicenser is attached. Now, because I do not have Win 7 I am not using the Cubase software that came with the UR28M. The built in REV-X appears to be working fine. Do I have to worry about activation at all? Will I need it for support or things such as firmware updates?