I have a Verizon Wireless aircard (wireless modem UM150), and am trying to set up Internet sharing so that my daughter can share my Internet connection. We are both using OS X (10.5.4). I have enabled Internet Sharing with my aircard using airport and have the arrow in the airport indicator, so I think that part is working properly. But when I use my daughter's computer and try to access the network, it sees it and connects to it, but then it drops it immediately. I would appreciate any help. I never touched a mac until 6 months ago, so please don't use too much tech-speak.