To access AU's systems, including Brightspace, you must have an AUID. You can create an AUID by following the link here: https://adgang-prod.au.dk/en/create-account/?context=GenSelfDa
Once you have created an AUID, you must contact your AU contact person to gain access to Brightspace.
Questions regarding functionality or technical issues:
See if there are any general problems on Brightspace on serviceinfo: