CGDI MB v2.7.0.0 w211 2005 keyless go experience: Works finally

CGDI Mercedes Benz Programmer v2.7.0.0
w211 2005 keyless go
1 key present 59

read EIS ok
collect data, choose key, other keys
voltage v13.51

compute password,,
insert key EIS ok
insert key in CGDI
starting key collection
after a few minutes, message, is the key loose?
press ok
after this message device information failed

sn: unknown
it is like the device is disconnected.

restart program, still getting message device information failed.

disconnect obd, same
disconnect usb restart ok

how can this be, I tried with w7.32 and w7.64
Run admin, no virus scanner
internet connection ok.
voltage 12.5 up to 13.5
even tried with turned on hazard lights.

Reinstalled software, then updated to 2.7.0.0

I am now reading it as akl.
Disconnected ELV, connected k-line 
This works, takes about 40min of data reading.

CGDI MB source:
http://www.obd2shop.co.uk/wholesale/cgdi-prog-mb-benz-key-programmer.html

Article Source: http://blog.obd2shop.co.uk/cgdi-mb-v2-7-0-0-w211-2005-keyless-go-experience-works-finally/