Turn the WiFi on your device off and then back on.
If the steps above don’t work, you’re heading to the restart path.
If you try to visit a secure site and your network tries to redirect your browser to a login screen, your browser will prevent to keep your data secure. You may be wondering why a non-HTTPS site. You could clear your browser cache or better yet, open an incognito window in your browser and try visiting a non-HTTPS site. You can try to break this cycle by accessing a new website.
Did the first step not solve the issue? Then, the problem could be that your browser cache is still trying to use the previous DNS info it knows to access sites instead of loading the WiFi login page.
If you forgot where the DNS setting is – this article from HowToGeek should refresh your memory. If you change your DNS settings you should switch to the “default” or “automatic” setting and the WiFi login page should appear. And that’s good, at least with public WiFi. By default, your device picks up a DNS server from the WiFi router, which is what the public WiFi expects you to use.
Change your DNS servers – If you don’t know where to change your DNS settings, you’re probably fine.
Here are some things you can try in order to manually get the WiFi login page to display: