Previously I had a wired network which ran fine. 2 units, Xbox 360 and lappy connected to a BEFSR41 v3 router.
I recently installed a Gigabyte PCI WLAN card (GN-WPKG) and as a result lost the lan support on this computer. Internet is fine, I have just lost file sharing abilities.
I am going to uninstall the driver and see how I get on...