Thanks for the reply! No - I am broadcasting my SSID - I have some other wireless devices in the house that don't like a hidden SSID either. I have tried various configurations re: power:
1) wireless and RPi powered from the same powered USB hub
2) wireless in the hub, RPi powered by Adafruit 1A adapter
3) wireless connected direct to the RPi, RPi powered thru the hub
4) wireless connected direct to the RPi, RPi powered by Adafruit 1A adapter
Did not make any difference how things were powered - same results. At the moment, I don't have the error messages I was getting at the boot, but I am going to capture those again shortly.
I've tried some other things:
* made very sure I had edited the right file and got my SSID and WPA2 key right
* verified the MD5sum of both the zip and the image - they are good
* tried different SD Cards, including one bought from Adafruit (4GB), a Transcend 16GB, and a Transcend 4GB - no difference
* the hardware seems okay, on Wheezy everything works flawlessly
* I did put the router into WPA mode to see if this was a router issue, no change
Probably one of the most interesting things - the wired ethernet port doesn't work either under Occidentalis
0.2. As I was turning off the lights on my tomato seedlings, it occurred to me that perhaps this is to ensure compatibility with the RPi's without wired Ethernet?
Some other data points...
lsusb shows "Bus 001 Device 007: ID 7392:7811 Edimax Technology Co., EW-7811Un 802.11n Wireless Adapter [RealTek RTL8188CUS]" so that's a good sign...
lsmod does NOT show any 8192cu or any other devices that might be the wireless. They are all i2c, a whole bunch of snd, spidev, evdev, joydev, spi_bcm2708, rpi_pwm, i2c_bcm.
Interesting, following some other online documentation this seems to suggest that the kernel driver is not loaded.
iwconfig shows: (leaving out lo and eth0)
wlan0 unassociated Nickname:"<WIFI
Mode:Managed Frequency=2.412 GHz Access Point: Not-Associated
Retry:off RTS thr:off Fragment thr:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
TX excessive retries:0 Invalid misc:0 Missed beacon:0
dmesg shows a ton of errors...
I have probably several hundred of the following group of messages:
ERROR::dwc_otg_hcd_urb_enqueue:518: DWC OTG HCD URB Enqueue failed adding QTD. Error status -4008
INFO:: periodic_channel_available: Total channels: 8, Periodic 7 Non-periodic 0
INFO:: schedule_periodic: No host channel available for periodic transfer.
Interestingly, another different webpage talking about this same adapter shows a very different USB ID. Mine shows 7392:7811, another tutorial shows the same USB dongle showing USBID 0bda:8176.
0bda:8176 has four entries in the RPi_VerifiedPeripherals list, while the 7392:7811 entry has only two, which seems to suggest while there may be several adapters calling themselves EW-7811Un, perhaps there was a change in the internal guts at one time or another?
I did just put in an order for an Adafruit wireless adapter, just in case something has gone different with the Edimax where it no longer works now.