Minecraft Realms no works

My friend invited me to Minecraft Realms in 1.6.2, and actually i have the Realms button, but when i press it, just appear this: http://gyazo.com/1b3e49114f0180baa795d0bdd28d4181 (no servers). He get me in again and again but... nothing. My Minecraft Username is Algon2000

Here an screenshot.