Hi
If they are this way out of the box you should contact Dell before something is done that will void the warranty.
Otherwise, on boot get into the BIOS and make sure that the LAN is On.
Dell Optiplex 780 (Windows7) NIC problems
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Anonymous
I have 3 new Optiplex 780 32 bit windows7 in my lab. All 3 do not show the Network adapter in the devices. They have been this way out of the box. I have tried to install NIC drivers and nothing works. I cannot get the computers to find a network adapter or recognize a driver.
Today I downloaded the cab files and tried to install the NIC driver and that did not work either.
Any suggestions?
Windows for home | Previous Windows versions | Internet and connectivity
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Answer accepted by question author
-
Anonymous
2011-03-18T18:28:43+00:00
1 additional answer
Sort by: Most helpful
-
Anonymous
2011-03-19T20:44:50+00:00 Thank you! I went into the BIOS and they were all turned off. I don't know why I didn't think of that earlier...guess we just overlook the obvious sometimes. Thank you again!