If your Internet went down just before you posted and it's not a frequent thing, go for a walk (weather permitting) or do something to just relax for a bit. If you know your neighbors, ask them if their Internet is down. You can phone Cox to report it if you want, but it's probably just a short-term, local outage that will be fixed quickly. If your Internet remains out for an extended period of time, contact firstname.lastname@example.org. Post back when Internet is restored.
Was that for my benefit? OP joined the forums 4 minutes before he posted to tell people across 19 states that his Internet had just stopped working. He wouldn't have even known yet if he had anything more than a "stuff happens" temporary issue. I think relax was good advice until he knows if he even has a real issue. Now I'm going to take my own advice and watch some football.