I have ubuntu 13.04 and the internet keeps on messing up, one minute it works fine next minute the page will say "page cannot be displayed" this happens on all web pages and both chrome and firefox. It also keeps disconnecting me from the wifi and I have to turn the wifi (wifi tool, not actual wifi box) off and on again for it to work, and sometimes that don't even work.
It has been doing this for about a week now and it is not the modem or router as other laptops in the house work fine.
I have tried updating the system
sudo apt-get update and the problem still persists.