[ian@huth]

Originally Posted by frank.lui

Thanks guys, the helps are really quickly. I start to like this forum.

I am using ethernet/wireless connection.
Just try to dig a bit more technically. When select DHCP, I cannot find any place to input NTL user name and password. So I assume there is no such information stored in router (am I wrong?). So it is easy to understand the running of desktop as I already install NTL thing there before. But how about the two laptops? how can NTL server knows it is my computer is connecting (via my account?)?

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NTL only see the router as Paul said. You have to ensure that you have adequate security on your wireless network or anyone within range can access the internet through your connection.