I have a friend who would like to have wireless in his house. I go over to setup a wireless network to give it a test run. I use my computer, a dell Inspiron 4000 P-III 850, and I have no problems. I can go anywhere in the house I want.

Here's where the problem lies. I hook up his laptop, a Compaq 2100 AMD Athlon XP 1800+ (they have two of these exactly the same), and I can't move more than 15 feet away from the WAP.

All three systems are running Windows XP Home.

Anyone have any ideas?