Installing a Netgear 341U Sprint Mobile Broadband Card on a Mac

I've had some trouble getting a Netgear 341U to install on a Mac.  Here's what I've found to work and also what you're looking for.

The proper Netgear 341U setup shows WWAN LTE as an option as a network to connect.  When the Netgear 341U is plugged in, the WWAN LTE will show as connected.

I've let the drivers install when you first plug the card in, but this did not work for me.  Somehow, they just didn't show the WWAN LTE connection.  The solution seems to be go to Sprint's site and download the drivers from there with the card plugged in.  Download the drivers.  Install the drivers and reboot - all with the card still plugged in.

Drivers located here:
http://kb.netgear.com/app/answers/detail/a_id/27019

Internal Verizon card (GOBI 2000) connects but won't disconnect

I haven't had the chance to test this - but I had a client tell me that the resolution to an internal Verizon GOBI 2000 card that connects continuously but won't disconnect is to change the setting as follows in the VZ Access Manager preferences.