[Kryptnix]

Heyy how can i bypass the login portal to access the internet in a connected wifi network? I’m connected to wifi network but i need to enter the user and pass for accessing the internet, how can i bypass the login or know the user and password? router is not letting me ping the victim. i tried ettercap and iptables but no use of it. any webpage is not loading at all I need some help man.