Can't see Macbook WiFi-access point on Android smartphone I'd like to connect my Android phone (Samsung Galaxy Nexus running Stock JellyBean) to my Macbook Pro (early-2012, running OSX Lion) via an access point created by my Macbook Pro.

Sadly I can't even see the access point on my Android phone.

Does anyone know a possible solution to this problem?

Additional information: A nearby Windows-PC and iPhone can connect to the AdHoc-network of the Macbook. The android phone can connect to all other wifi.
Sadly, most versions of Android do not support adhoc networking (only infrastructure), which is almost certainly what your Macbook is broadcasting. There is a program called Wifi Adhoc Enabler on the Play Store, which will allow the device to see adhoc networks. I think it requires root access though.