I have a MacBook Air with OS X 10.8.5 and a Samsung cell phone with Android. I use the Wi-Fi heavily on both (I travel a lot, and only use Wi-Fi when I'm out of the US) — often in cafes — and I rarely ever have a problem. Wi-Fi is usually perfect and easy in any cafe.
But there are a couple of cafes I frequent where, my Samsung Android phone picks up the cafe's Wi-Fi signal — and picks it up very strongly — but on OS X, the network just doesn't list it at all. I know it's not a signal-strength issue, since on the Samsung Android, the signal is super strong in all 3 cafes. But OS X for some reason just doesn't find the network — not even when I go to "Join other network" and type in the network name.
What could cause this? …and is there a solution to this that you would recommend?