I'm working on my step sister's computer. The network hardware states: Intel Pro/100 VE Network Connection and im using a motorola cable surfboard modem. it'll connect through usb, just fine. but when i connect it via ethernet, it won't connect. the local area connection states it's connected at 100Mbps, and packets are sending, but nothing is being received. When i go to "add hardware" (when reinstalling the drivers) it shows the SM Bus Controller as installed, but the drivers are apparently missing. what could be going on here?