Can't run Dell diagnostic because it keeps saying its not a Dell computer, even though it is.
Don't see the ethernet listed in device manager either.
Using parent's computer since I have no internet at my home.
Previously I hooked the ethernet cable from the modem to a USB port through a converter I bought. With my old modem and connection that worked fine usually, but kept stopping and I had to reset the computer to get it working again. When I signed up with AT&T DSL service, that didn't work at all. I called AT&T DSL support and they assured my old Motorola modem was defective, after asking for its serial number. So they sold and sent me a new modem.
It worked through the USB port for anywhere from 10 seconds to an hour, off and on for the past week, and for the last few days, not at all. AT&T says they tested my line and its fine, so its a problem with my computer, and they can't help me.
If I can't get my ethernet port working, is there a way to get my USB port to work?
The toolbar icon has the yellow triangle with the exclamation mark over it, over the picture of the computer monitor. If I unplug and replug the USB port, it goes clear, but the internet still doesn't work. Resetting the network device, and the change IP option, don't do anything to fix the problem. Switching to other USB ports doesn't do anything either.
OK, before you purchase a network card, go into the BIOS setup and make sure the on-board NIC is not disabled. If it is enabled then it must be bad, so go ahead and purchase an inexpensive PCI card. I have purchased equipment form Newegg before with no problems.