Originally Posted by RazorSharp
It happens occasionally. Wikipedia's servers are heavily worked at all times. Not many people know just how underfunded and undermanned the WMF is considering that Wikipedia is among the top 5 (at least top 10) most visited sites on the web. I was actually on there doing admin stuff earlier when it crashed. Can't remember if I've ever mentioned here before that I'm an admin.
Looks like the cause of the outage has been identified:
Cut cables send Wikipedia crashing to a halt | ITProPortal.com
BTW, RSRSS coming within the next few hours