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

Fix for Netgear C3000 that will not connect to VPN

I found a fix for users with a Netgear C3000 cable modem router that are unable to connect to PPTP VPN.

In my test case, the user was on Comcast and getting error 800 when connecting to her company VPN.

First, make sure you can log into the router.  Default login and password are admin/password.  You'll need to be able to log in.

Netgear has this page which gives a download which makes an update to the router firmware to allow VPN passthrough:
http://kb.netgear.com/app/answers/detail/a_id/26099/~/c3700%2Fc3000-vpn-pass-through-hotfix-for-windows

In my test, I had to apply the update and then manually reboot the router, but afterwards, I was able to connect to the PPTP VPN per normal.