Can I get some help I have laptop that is a HP Compaq nc8000 and i reinstall windows xp in it and now iam getting error when i connent to internet it say failed to query TCP/IP settings of the connection?

when does the error appear? when you open your browser?

check your network adapter's driver:
Right click My Computer -->Properties.
Go to Hardware Tab then Device Manager.
Find the Network Adapters in the list and check if they're installed

Check your Internet Protocol (TCP/IP):
go to network connections
right click on your network adapter -->Properties
Scroll down and see if Internet Protocol is checked

hope that helps

I check both of them the tcp/ip protocol is check and in the device manager i see couple of ? marks on 2 ethernet controller and the error come up when i try to repair it?