Hi,
I'd like to recommend that you edit your post and remove the references to your passphrase, if indeed you've posted your real passphrase by oversight. It would also be a good idea to change it if possible, in that case.
Your error shows
Code:
athn0: could not load firmware (35)
Without the firmware being loaded, the driver cannot operate the device, so you will have no network connection through it. This same problem has been noted on OpenBSD with the athn driver when used with some devices. (It has happened to me.) I can't recall having this same problem on NetBSD. That said, it's been quite a while since I tried my athn device with either system.
It may be helpful for people to know what version of NetBSD you're using.