Webpage authorisation

Hi, my problem is, that my internet connection is with two steps authentication. So, the first one is to set the login and password for the wifi.
After connecting, to receive access to the internet, i have to open a browser page and set again the login and password.
After this the internet appears.

So the question is, how to set the password for the browser page? Are there some ways to do it?

I am sorry, I am new to Hiveos and do not know a lot of things.

Any help will be good!