Hello!
I've got almost working solution with this modem (I've a Thinkpad x230 with patched BIOS).
You need a netgear drivers, aircard watcher and kext with fix:
One problem is that watcher cannot establish connection after sleep (it working normally only after reboot).
I can see only this in Console:
Can you show me how to resolve this problem?
NetgearDrivers 2.5.1 5.mpkg.zip
AirCard_Watcher_B4089.dmg.zip
AC340U_MacOS_Fix.pkg.zip