Hello everyone I'm a first time poster. I have a client who has a MacBook 4 that needs to connect to the internet via a wireless router. The setup for the network is a bit different then some. First the wireless router is a linksys range booster WRT54, it is set up to gain a DHCP address from the Cisco PIX firewall, and to give addresses to wireless users via the same firewall. The problem is, this MacBook will connect to the network, it will gain an ip address (that will give ping responses to other machines in the office) matching the scheme the network is using, but it will not connect to the internet. The network is a domain, but I used my windows laptop that is not a member of that domain to connect to the network and was able to get to the web. The Mac will connect to the internet using a hard line connection at the office, and the client uses a wireless connection at home for the same notebook, its running OS X but I don't know which version. So there it is thanks for any and all help!