Minecraft Forums

Me and a friend often like playing minecraft on lan worlds, but for the last couple times we've met up, neither of our lan worlds show up on the others computer. we've already checked any firewalls, and that isn't the issue. we both have the most up to date version, he has a mac running snow leopard, and mine is running mountain lion. the only issues that we can think of the problem could be is the different operating systems (which seems unlikely) or the only other thing we can think of is that we are using the wifi at a Starbucks, which i believe is provided by AT&T. anybody out there have any suggestions?