I am using NAAF v5.6 .I am configuring for Email OTP. It is showing me folllowing error.

Cannot send OTP. Auth extension not supported by server
1. How to check if internet is working ?
2. Access to terminal so I can ping ?
3. How to configure Proxy setting inside naaf . Because to start internet we use proxy setting inside internet explorer like https://proxy.com
there is no need of usernsme and password.