On occasion the site can go down for maintenance, but not that often. I have not experienced any outages this past week.
Being that I don't know if there was maintenance done, I will say cell networks often have hiccups, my gingerbread phone does from time to time. Even with full bars the internet just doesn't want to load, often disabling data and re-enabling it solves it for me. As for your work router, are you sure they still allow access to forums? I got EB blocked at my work.
One of the roots will have to chime in to let us know if there was any maintenance being done, so we know for sure.