|I think you are thinking in old terms concerning modems. The word modem describes a number of devices that modulate and demodulate a signal.|
A 56k modem attached to your pc requires a driver to be addressed.
An internet modem, which technically is not part of your pc hardware, requires no driver. This is why you have not found one.
According to the specs your internet cable link goes to the f connector on the modem. You then have the option of connecting via usb or rj45 to the lan side of the modem
You are to connect your router via a rj45 patch cable from the routers wan port to the modems rj45 port.
You then connect your Toshiba to one of the routers lan ports via patch cable.
You then logon and configure the router according to its documentation/manual. Once complete you have internet access.
Just to clarify your post starts with laptop/modem/router.
The correct order is internet, modem, router, laptop.
Also note that by connecting laptop to modem the laptop is getting the ip address that should be assigned to the router which would prevent the router from providing internet access thru it.