None of the self-pace courses are available from the training portal site, training catalog pdf hyperlinks, or from redirects.
The URL appears as a maintenance event with no notification of the outage or ETA
https://maintenance.nvidia.com/en/training-by-topic/?training_by_topic=9&subt=54
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AccessDenied
Access Denied
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Learning Paths for Administrators and Developers
https://nvdam.widen.net/s/brxsxxtskb/dli-learning-journey-2009000-r5-web
https://nvdam.widen.net/s/msnbf5rzc6/nvidia-learning-training-course-catalog
List of courses I tried opening, among others such as Base Command Manager, Infiniband, rdma, mlxlink, to name a few:
https://maintenance.nvidia.com/en/course/dgx-cloud-administration/?cm=52981