Multidiag CDP Pro+ EOBD communication with vehicle failed

I have activate the program but the sp211 not working as the one you send me from repair.Whats wrong… look the attachments.I have try to many cars such as skoda octavia rs yaris 2001.vw polo 2003 , all are failed. But the selftest is ok.

cdp-error-1 cdp-error-2 cdp-error-3 cdp-error-4 selftest-ok


But how to solve this kind of problems ?

Our engineer told that change a some device to work on same laptop and same software and same models to check

If still the same problems, it means the device is broken or the software is broken.