The internet doesn't work, blinking green light on fiber box and modem

I did the installation exactly how the guide says. The only problem is. In the modem's settings in browser the status is : disconnected

The wifi is connected. The cables are in the right place. I made a reset too and the phone or anything else I have connects to the wifi ,but the internet doesn't work. 

Also. On the fiber optic box "connection" is bleeping with green light , on the modem too.

The first is on the fiber optic box 

The second is on the modem

The third photo is on the web version