error connecting MDL2 by usb

My collage has a problem that I don't have an answer for.

I'm trying to connect the  MLD2 to my laptop using IQANRUN2 software, but I'm having trouble establishing a connection.

Why isn't the connection working properly?

It feels like I can only connect once after trying about 20 to 30 times.

I also borrowed an other connecting USB cable and tried it, but the result was the same.

I will check if he has a USB-CAN dongle and connecting by CAN