Hey, I'm not too sure where this goes but anyways, as of recently I have not been able to get on the internet with my school's wifi network. I can join the network (the wifi bars become solid and diagnostics say I'm on the internet) but my school redirects all pages to a login screen where I have to enter a username and password. I could get to the login screen before but now I'm unable and after a while safari crashes and won't open unless I reboot. I tried with Chrome as well but nothing changed. HELP!