What’s could cause the internet to stop working?

[Pottsey]

Little stuck here and almost out of ideas. My downstairs PC has stopped working for no apparent reason, no software installed recently or settings changed. It cannot go on the internet, use MSN or outlook.

The network is up and running and it can view files on other PC’s. IP and settings all appear ok, system restore and a reinstall of the network card didnt work. Its over a wireless network and all the other PC's work ok on the internet.

What could stop the internet but keep the network working?

 

[Pottsey]

Its not my ISP all the other PC's work fine.

It’s got an IP but cannot ping other network PC’s which is odd as it can access there folders.

CMD ipconfig e.c.t brings up an error. Tried to reset the IP stack and winsocket but didn’t work.

“Not recognised as an internal or external command”
In fact it appears any valid commands that should work in CMD bring that error up.

 

[Pottsey]

IP/DNS all fine. Tried DHCP and manual IP neither worked. What did work was a long cat5 cable. So its got to be something to do with the wireless settings. So the big questions is what wireless setting stops the internet working but lets you browse the network?


Thanks for all the suggestions. Going take a few hours break before trying to fix it again.