[jerenus]

i am using usb connection
before i use the ethernet connection, with windows xp home edition( this came with the computer i don't have a cd of this operating system) , but internet was worked
when i install the windows xp proffessional (becuase i like to use it)
it delete the home edition and reinstall with proffesional
when i connect to the internet using etherent, it didn't work, so i tried to repaired the local area connection , but thats not worked too. it says "the following steps of the operation failed: renewing the ip address. please contact your network administrator or ISP"
i tried to renew the ip using cmd.exe it says "an error occured while renewing interface local area connection : unable to contact your dhcp server."

please help me out of this problem
thanks