Problem is, while Ubuntu is able to go online, Windows is incapable of it now.  Going into the CMD prompt and doing IPCONFIG brings up "Unable to Query Host Name".   My friend and I had this problem and I was able to fix it by uninstalling the Ethernet NIC adapter and letting Windows reinstall upon reboot.  This time however, that solution seems to be a futile attempt, and right now I'm on Ubuntu trying to sort this out.

What happened to Windows online capability when I installed Ubuntu, and how can I get Windows to work online again?

---

did you try to reinstall windows

---

Negative.  I dont have the System Recovery Discs, which includes the installation of Windows if you fdo a full restore.

All you have to do for if the machine can't grab an i.p. is...

1. search for the file 'tcpip.sys'
- results will show 5 or so files named 'tcpip'
- 2 of the results(both will be named 'tcpip.sys') will be from a recent modified date while the other 3(named 'tcpip.sys.original') will be from a much earlier date

2. delete the two recent 'tcpip.sys' files

3. rename the 'tcpip.sys.original' files to 'tcpip.sys'

4. uninstall the NIC Ethernet adapter
- Start > right click My Computer > properties > click Hardware tab > Device Manager > Network Adapters > right click NIC Ethernet Adapter and uninstall

5. reboot
- when Windows restarts, it'll detect NIC Adapter as 'New Hardware found' and will install

6. go online!!!