I need an external hard drive, and want a wireless one. The Time Capsule is the only one I know of, so it seems the obvious choice. However, my network setup is untraditional. I use Mobile Broadband via a Cradlepoint router for my internet network. Will I still be able to use the Time Capsule wirelessly with my MacBook Pro without connecting the Time Capsule to the Cradlepoint router via Ethernet? Would a Time Capsule work with my setup, or would it be a hassle for me to access it?