[Jellby]

I'm having problems connecting the Fire to Internet through my home wifi router. In my old home everything worked, as it does in the university (through the eduroam network), but here I don't know why I'm getting the "connected" icon (wavelines next to the battery icon) and an orange network connection icon (which says "connected" below), but the wifi icon on top has a cross on top and indeed the Internet connection is not working. After rebooting the router, the Fire, disabling wifi for a while, enabling again, and several trials, I once managed to get it working, but now it's failing again.

The router seems to be working fine, since I have the laptop connected in the same wifi network, and this message is being sent through it. As far as I know there's nothing special in the wifi setting, just input the password and it works (but I don't have the admin router password, so I can't see much more).

I find several similar cases in the web, but no clear solution. Does anyone have a better idea?