I just wanted to share something that I found out today. I've been trying to get into the ATRRS course catalog for the past 2 weeks with no success. I thought maybe there was a server error or the URL changed so I decided to give them a call.
It turns out that ATRRS is now only accessible from .mil networks. This means that Guard and Reserve will no longer be able to research what Army classes are available.
Just thought I would share this if anyone else was wondering why they couldn’t get to the site.