It is normal for 2 attempts to get a wpa key with Minidwep30419 with Reaver no pass of 90.9% complete trying to pin 99985677 speed 3 sec / pin the first to use a rt3070 usb adapter and then with the rtl8187 and the result was the same and I could not get the key.
This is highly abnormal, but certainly possible. It has been identified that some APs will report the first half (4 digits) as incorrect, even if they are. It also depends on the variables and commands you are inputting. If you use the -L flag (aka --ignore-locks) you can run through the entire scan and come up empty handed.