hydra giving wrong passwords

@vanhauser-thc hi I'm new to kali linux and hydra I wanted to test hydra on my own WIFI gateway and I used this command: hydra http-get://192.168.100.1:80 -e ns -F -V -L Desktop/user.txt -P Desktop/pass.txt but every time I run it it gives different password each time and it wrong can someone help me fix this issue