Can browse, Can't ping!
This is a weird one.
I have a colleague with a laptop and sis900 network card. My machine works just fine, his has stopped connecting to the 'net.
He can browse the web via a proxyserver.
He _can't_ ping any machine.
I can, from my machine, arping his and get the correct MAC address of his machine back.
I have tried two IP adresses (DHCP and a static) same problem.
His routing table and DNS settings are the same as mine.
I can't ping him, but I can "arping" him.