diagbox fault...

[CAN Diagnostic]

642812 Ive had and used it for a while no problem, reinstalled still the same tried on another laptop, no change so i brought another interface and i still get the same message! really doing my head in now i would really like some help please, all drivers are installed

[Stopro92]

It can be used in another car, maybe your obd connector has no power.

[CAN Diagnostic]

i have, in this instance it wasn't plugged into a car, but into a plug that i made that i use to check/set up my diag machines

[Stopro92]

Some cables are based on the appropriate resistance, maybe here is the reason. Try using the original cable in the car.

[CAN Diagnostic]

as soon as i load diagbox it comes up with that box saying its not connected, even before i select what manufacture it is

[Stopro92]

Maybe some driver is missing?

[CAN Diagnostic]

not sure? ive never had this issue before, as far as im aware they are all installed, not sure if ive brought another duff