[wlan1 (USB ALFA) won't come up, isn't listed in ifconfig]

Okay, I think part of the problem was with the cable I was using. I can now bring the interface up, but it won't scan for access points, so I can't connect to anything. The interface just goes down when I try. I get errors when I try to change the mode, specifically:

Error for wireless request "Set Mode" (8B06) :
    SET failed on device wlan1 ; Invalid argument.

Is there anything else I should try?

[wlan1 (USB ALFA) won't come up, isn't listed in ifconfig]

Actually, this is most likely a power issue. Are you using a powered hub?

I'm powering it off of a Pineapple Juice battery pack. I thought that was sufficient. But even connecting to wall power, I'm still having the same problems.

[wlan1 (USB ALFA) won't come up, isn't listed in ifconfig]

I see wlan1 listed in iwconfig, as well as /etc/config/wireless, but whenever I issue ifconfig wlan1 up, I don't get an error, but the interface doesn't come up. I also see it using the Network Configuration infusion, but trying to configure it through there doesn't work either. I can't figure out what's wrong, as I've tried some other suggestions on the forum, but nothing has worked.

Any help would be appreciated.

Cheers