I am using Ubuntu two different ways, one is a Ubuntu 13.10 live-cd; the other, a normal 13.10 installation but with all security updates. In both cases using Firefox.
The first can connect without problems to my school's internet, the second no matter what I do, can't.
When things work out, I try to reach a web-page, get forwarded to a login screen, input my credentials and it grants me access to the internet.
IExplorer under Windows 7 is also working. Firefox under Windows too.
How can I repair this? Can I disable some settings? Or just clone the setting of the live Ubuntu into the normal Ubuntu installation?