I just received my Axoloti today, and unfortunately am getting connection issues on Windows 7. It appears that the drivers and software are installed correctly.
However I'm having a similar issue as this thread, and also tried the DFU mode and got the error:
No devices in DFU mode detected. To bring Axoloti Core in DFU mode, remove power from Axoloti Core, and then connect the micro-USB port to your computer while holding button S1. The LEDs will stay off when in DFU mode.
You mentioned it "is probably an unknown hardware error". Can you elaborate?
Here is the output I get when first starting the software:
Axoloti version : 1.0.12-0-g80370d2 build time : 02/02/2017 20:39:14 CET
Link to firmware CRC E95BAC96
Status: factory (1.0.12,anon) : OK ( 1.0.12,clean )
Status : home : OK
Status: community (1.0.12,anon) : OK ( 1.0.12,clean )
No available USB device found with matching PID/VID
search path : C:\Users\fineberg\Documents\axoloti\axoloti-factory\objects
search path : C:\Users\fineberg\Documents\axoloti\objects
search path : C:\Users\fineberg\Documents\axoloti\axoloti-contrib\objects
finished loading objects
Any advice would be appreciated.