i'm using a DSL connection on my computer. recently i installed a router by just passing the connection from the modem to the router, and then to the two computers. its worked before, i mean i've been able to go online using both computers at the same time, but sometimes it just won't connect. the diagnose function of windows vista just says that there may be a problem with my DNS. i don't know how to work it. i went online now by taking the connection off of the router and plugging it straight into the computer. how do i fix this?? the router didn't come with any software, so i must have missed something in configuring it