I have a Dell Dimension 1100 with an onboard Intel Pro/100 VE network card. It stopped working after I plugged a Lexmark Z1300 printer into the USB port next to the ethernet port. I've upgraded the Intel driver, and ran diagnostics; the EEPROM, Control Registers, Interrupt, PHY Loopback, and MAC Loopback tests passed, but the Link test failed.
Using another computer, I can use wireless to connect to the modem and get on the internet, but can't connect to the modem's physical ports, either (this second computer's NIC is known good and works elsewhere). So I assumed the modem's ports were bad and got a new modem (exact same model). Still getting the message "network cable unplugged" for the Local Area Connection, and the Link test fails in the NIC diagnostics.
Is this NIC/USB problem common? Can it be fixed or does the motherboard need to be replaced?
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