This article describes the steps necessary to connect to your Cradlepoint through your computer.
I have a Win 7 laptop, Vista laptop, XP laptop, Nokia N95 and Soundbridge all connected.
If you are trying to connect to the 5GHz wifi, there will be a 5g after the last 3 of the routers MAC address.
Note: If your router has multiple ethernet ports, DO NOT use the WAN port to connect a computer.
I had been able to connect previously, but the connection would always indicate that it was validating.
However, it didnt work, until I disconnected, turned the power off my Wi Fi, unchecked the tab in the authenticate dialog box, clicked ok, then switched the Wi Fi power back on, and reconnected.