Why can't I connect to my Schools wifi?

[AC Question]

Can't connect to my school wifi

So since this Tuesday, I have not been able to sign into my school wifi. None of my friends (who have the same phone that I do [Samsung galaxy S5]) have this issue.
I connect normally, but then a page asking me to sign in should pop up. My phone takes me to Google and it doesn't connect. I've tried going in my history and opening the website from there, but everytime I sign in it doesn't connect.
This is also happening to me for my local mall wifi.
It's getting really annoying and I've run up my mobile data bill (with having too look up stuff and teachers that make me play kahoot).
What should I do?

 

[H3aTeRzz]

Hi

We'll need a bit more information in order to help you. Please register, or post another question and let us know your Phone's Model Number & Android Version. This can be found in the About Us section in settings. Also need to know what might have caused this....a recent app install, a recent software update?

Thanks!

Chris