on my desktop and laptop i have ran the network setup wizard and used the same work group name and selected my desktop as the pc that connects to the internet and that other pcs conect to my desktop
Hi Ben, I think that you have selected the wrong method.
The router connects to the internet via your modem, not your desktop pc.
Run the wizard again and select the option, "This computer connects to a residential gateway".
Enable the file and printer sharing option if you want to swap files, if you just want the internet connection you can leave it disabled.
Once you have done it that way I think you will find it should work, firewall permitting.
If it still doesnt connect temporarily disable the firewall and see if that allows it.
Often the firewall is the tricky part to get working.
Let us know if this cures your problem as we dont want you ending up like Simon and Clive ( hairless that is )
Rethink after re reading your post :?
Can you confirm that you have a PCI modem in your desktop and how the router is connected to your pc please ?
If the router is connected by ethernet cable then I dont think it can work that way round
In fact if it is that way then I cant understand how the laptop can ping the pc, I would have thought that it could only ping the router :?