i have elm 327 with 4.7multiecuscan,itry to connect with the adapter and everything is fine elm327wifi in settings menu(it says ok-ok-ok-ok) but no conection with car.what is wrong? please answer!thank you

i m register user and i have WIFI ELM327 i can't connect with the program,,also i try to connect with autocom cdp+ interface and i can't.what can i do?
thank you!