I recently moved my Dell Dimension 4400 with Windows XP Home edition. Upon reconnecting everything, I had some issues. The first was I could not get a monitor signal. I opened up the tower and seated the video card firmly in the slot (I guess it got jiggled loose upon disconnection). First problem solved. (I mention this only to demonstrate what physical actions I took between computer working and not working, lol. I know all you tech people ask first thing: "What did you do?")
The other problem is that I do not have access to the internet. My DSL modem has only 2 LEDs lit - so I know it has power and it is sending to the computer. The 3rd LED is out which means the modem is not RECEIVING info from the computer. The first thing I tried to do was to go to my Network Connections screen. There were no icons! So I tried to create one. The computer couldn't find the NIC. I also tried rebooting in "Last Known Good Configuration" - still no NIC or internet connection.
When I looked in Device Manager, I got a LOT of yellow ! marks under the heading "Unknown Device". I removed them all and rebooted the computer.
Upon restart, the computer found new hardware, but everytime it installs it, I get the yellow !s. I am down to two "unknown devices": Intel(r) PRO/100+ Management Adapter and WAN Miniport (ATW).
I know the WAN Miniport is an AOL thing (don't ask - I can't bear to give up my AOL address so I log on for email purposes only via TCP/IP). Unfortunately, I do not have a CD from DELL with all my drivers. I have, however, downloaded what I hope is the correct driver here at work and I will copy to a CD and take home. I also will change out my internet cables (the cat has chewed through the insulation of my current one, although, it worked just fine only hours prior to this event).
I really don't understand how this happened. The only other thing that is different is I had a small hub attached to the computer. This was from when I had two other comps running on a network (no longer have the other two computers, but this one remained hooked up to the hub anyhow). Upon hooking up this time, I decided to run a cable right from the DSL modem to the NIC. However, I did try to go through the hub to see if that made a difference and it did not.
Sorry so long, I wanted to provide all needed info. Any thoughts or ideas?