I experiencing the 2002 as of tonight. I started trying around 6 pm PDT and its currently 7:30 pm PDT. One thing I've noticed is that while I get the lobby server error on my PS4, my laptop (Windows 8) is able to connect without issue. This is starting to look like an issue with SE as opposed to my ISP. However, for completeness:

ISP: Comcast
Location: Salem, Oregon, USA

I've been encountering erratic issues for the past week, and this is the first time I've thought to use the laptop.