How Can A Notebook Be On The Lan But Not Seen By Router or Ping?  

Samuria said:

If you post results from ipconfig /all we may be able to tell you it could have a fixed up which happens to be in the right range

don't quite understand what you're saying there but I'll post the output for you.
you'll see he's got the same IP today as I told you he had yesterday : x.x.x.200
and you'll see the gateway is my gateway: 192.168.0.1

and I'll post the output from that gateway, too, so's you can see what I'm talking about: x.x.x.200 is not listed there.

It has a fixed ip and doesnt get an ip from the router it pure chance its the same range as your network which is why it works change it to obatain ip and it will show up

Samuria said:

It has a fixed ip and doesnt get an ip from the router it pure chance its the same range as your network which is why it works change it to obatain ip and it will show up

I'll give this a go when I get some time.. hopefully later today... but I have reservations... I frequently put fixed IP wifi cameras onto my network and when they're there they show up on the router list I believe...