just got in hp tuners and i used it yesterday, everything worked fine. Then i go to do some adjustments today and it says "The interface was not found or is not responding. Verify it is connected properly and the vehicles diagnostic port has power." I triple checked everything, car is in run position, cables are all hooked up tightly, the little module thing shows it has power with the little green light. I dont know what to do? This happened within 24 hours with no changes or updates made to my laptop.