You need to 'claim' your account and create a password. Go to id.unl.edu and click the id.unl.edu/claim link:
It is important to understand the University's Computer Usage Policies. You can click on the link to read the Policies. By checking the box you are agreeing to abide by the policy for as long as you're at the University. Once you understand the Policy, check the box and click the link to continue:
The next page will have you identify yourself to the system, your nuid will be on your N-card, it is the 8 digit number on the bottom left.
The next screen will give you your My.UNL (Blackboard) username. I don't have a good screenshot of that. After that, you should be prompted to set your security questions:
It is very important to set answers to these. You'll need to answer 3 of these to be able to reset your password should you ever forget the current one. Lastly, you'll be asked to set your password:
Do Not Close your browser before setting an acceptable password. Doing so may lock you out of your My.UNL account.
Once you've set your password, you may log out of ID.unl.edu and you should be able to log into Blackboard and the wireless registration page with your new Login and Password.