I am studying for the CISSP using ISC2 online training. Today (Jan Mon 23th) the https://learn.isc2.org/ worked well until 16.00 EET (2pm GMT).
Since then site has been very slow making it practically impossible to watch the learning material & videos.
Are there issues with learn.isc2.org service?
Now it seems to work, problem solved.
Thanks for update. In the future, assistance can also be found at https://community.brightspace.com/isc2/s/.