Upgraded my Omega2+ by 'omega2p-v0.1.8-b147.bin' and now a request of "device-client" looks like:
'ds.onion.iop/05e78737-5c64-4796-8363-a13baed034e5/listen?key=ynGNSrhqOeK9RkCxDIxoWwnInpPMmEhdGLiNCq9zCt8TqoDugapoionNa3ohCg0Sinfo'

When I corrected this request (deleting parts: 'p' and 'info') and sent him by browser, than I get from OnionCloud it: {"cmd":"init"}{"cmd":"heartbeat"}

@johan-ruijgt
Hello
I also found "k'y" in my omega request
How do you solved this problem?

I try connect device to Onion Cloud.
This device is connected to a wireless network .
Omega2+, Firmware0.1.7 (b139)

Running device-client -v get this result:

root@Omega-ABCD:/# device-client -v
IDENTITY THREAD!
Omega device name: 'Omega-ABCD'
Starting device client
Starting listening...
Sending request to 'ds.onion.io/anonymous/listen?key=anonymous'
Write_callback: received '23' bytes, time: 'Sun Jan 15 11:43:58 2017'
Write_callback: valid json: '{"error":"auth failed"}'
error : "auth failed"
Completed GET
Connection lost!
Restarting connection (restart #1) ...
RESPONSE THREAD!
Sending POST to url: '', post data: '{"error":"Could not find 'command' object!"}'
POST Sent! (url: '')
Error: Error
Closing RESPONSE THREAD

Where and how I can set ID and KEY?
Now they are equal "anonymous"