Minecraft won't let me play LAN?

My server shows up in my friend's server module but it won't let him join. It says 'connecting to server for a long time but just doesn't work. I'm playing on the latest snapshot BTW.

1. Is he also in the newest snap? 2. Is his connection good? Edit: I just found out MC is down that might be the problem

You both need to be on the same version. Also as an other comment pointed out, minecrafts account servers could be down.