I wired the FT2232 as followed:
TDO AD2
TCK AD0
TDI AD1
TMS AD3
GND GND
5V USB 5V Power of my Board
I tried to set diverent Clock divider. Everytime it is 0xFC000803 , except 0, than it is random everytime.
I also set the FT2232 up with the config file from SiliconWizard (thanks), but still the verification fails. Whats weird, now the IDs starts to change with the Clock set above around 6, but not as random. When I check the ID multiple times, it stays the same for a couple of readouts, than it change and than stays the same again for a couple of times.