How can I use an Asix AX88179 with Mac OSX 10.8 (Mountain Lion)
This is fixed in Mac OS 10.8.3. 

In MacOS 10.8.2 although I faced an issue:
I have a version from Delock running driver V1.3.0 (but V1.2.0 showed exact same behaviour). Adapter runs fine on first connect. If unplugged and plugged in again it will not work unless I reboot. Best solution I found is to reload the driver by hand. That saves you at least the reboot.

sudo kextunload -b com.asix.driver.ax88179_178a
sudo kextload -b com.asix.driver.ax88179_178a


If your driver has a slightly different name (for whatever reason) you can look it up with:

kextstat |grep asix