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i just bought the nds2 software and a vag com 409.1 cable, i then set up the com ports accordingly and the laptop recognises the cable and its working as far as the laptop goes. however i cannot connect to the car at all. i just get the conn failed in the bottom left corner, i try to find ecu and it comes up with nothing. no live data, no codes. nada.
i see there are several posts with the same problem but no solutions i can find on any of the threads. surely someone must have gotten to the bottom of this. i have seen other people successfully using this cable and software on the elgrands so i cant see why im having no luck with it.

Try adjusting the "Ini timer offset" under Settings->Communication. Try positive and negative values.

Hi Tom, have you had any progress on this issue? I am experiencing the same problem and have adjusted the values + & - with no success.