I have created a few, now old, networks via XP's "Wireless Network Setup Wizard." I am having major problems with "Duplicate IPs" and connections dropped. Do these ghost networks have an IP assigned as well? I use a router at home and it works off and on, more off. However I am having problems connecting even at school, especially when the signal is not as good. Others seem to have no problem.
The reason I know I have this old network, is that when I try to add a new network (just to test), it prompts me to add another computer to the old one.