I have a friend that has a cafe and used to offer a free wifi/internet access via an unsecure modem. Customers visiting the cafe for coffee etc could use their laptops ( or computers in the cafe ) on the net however this was abused by nearby business's and people not using his cafe and as a result always had usage blow out along with the additional costs. We want to secure the network with basic protection and customer will see a password / passphrase / authentication code listed or given out in the cafe once a week or so. We used WEP (open) ( yes I know it ihas little secuirity but its just a buffer ) and a password phrase "latte" however a few customers could access the net ( most using Vista ) we then changed it to WEP (shared) with similar results. We have disabled secuirty in the short term until we can work it out. We want it to be easy for the customers to access the net without having to get an IT person to set it up.
We are using a Telecom 2wire Gateway, 3 computers connected via LAN, one laptop via wireless ( business owners ) and then mulitple devices from ipad/iphone/pda/macs/notepad/laptops for customers using different platforms.
TIA