To disable loopback adapter: (Already been posted in this thread but so much spam ill just rewrite it)
Go to
Start
Go to
Settings
Go to
Network and Dial-up connections
Find your
Loopback adapter connection
Right click it
And
click Disable
PICTURE!

Yes i know i made it look complicated hahaha.. And yes windows 2000 does suck
EDIT
i just wanted to add this
SO annoying.
i put bot on last night, training fine!

mabye i would finally get my pure int to lvl 30
but no
i wake up and it disconnected as soon as i went to sleep

lol