You will need to get a Lan / Ethernet card to the 2nd computer. and connect it to the dsl modem also, if there are no open slots you will need to get a hub or a switch in the middle.
Hi Brenda.
this is all i could find.
To change your Actiontec GT784WNV password: Open your Web browser and enter http://192.168.1.1 in the Address field. Enter your user name and password and click Continue. Your default user name is admin if you didn't change it when you configured your network.