I have an inspiron 6400 and there is a problem with the wireless card in my laptop. How can you restart it? The problem I have is that though it states on my inspiron 6400 that I am connected to the wireless network of my home I am unable to connect to the internet. I know that it is not the modem because I can access the internet via the host computer with a wireless network. I know that it is not the router because I can access the internet via the host computer using my router and modem connected. I have taken off all the firewalls of the laptop. I have restarted my router Though it states that I am connected to the wireless network I cannot ping the host computer and I cannot ping a website. Cheers.