Not being an American, you probably never saw "The Bob Newhart Show". There was a main character on that show named Darryl. He had two brother - "my brother Darryl" and "my other brother Darryl". It was an endless source of confusion as to which Darryl was being referred to.
You have 4 buttons named command. That is no different from 3 brothers named Darryl.
in the browser I get the message EPIC FAIL in the browser window. Still pretty lame?
Yes, I'm afraid so. When a browser attempts to fetch a URL, there are standard error codes associated with the success or failure of the GET command that is at the root of the process. For a browser to treat all failures the same way ("EPIC FAIL") instead of telling you exactly why the GET failed (404 - URL not found, 503 - invalid access, etc.) is pretty lame.
I'd recommend trying a different browser. Of course, you need to make sure that the IP address in the URL is correct. That is done with no arguments.
Turning on Serial output on the Arduino, and opening the Serial Monitor will tell you whether a connection to the Arduino is even happening, and, if so, what the Arduino received and what it generated/sent as a result.