A week or so back I posted about my new laptop and a networking issue when setting it up.
Apparently other people have had the same problem as I did and not found a solution, so here is how to work around it.
Problem:
Windows will quite happily see the WEP encrypted wireless network and will claim to have joined correctly, but it will not pick up a DHCP address, and if configured with a static address will fail to see the rest of the network.
Work around:
Temporarily disable any encryption on the wireless network, this will allow the laptop to join the network quite happily, you can then re-enable WEP and MAC address filtering as appropriate and everything will continue to work correctly.
I’ve no real idea what causes the problem, I only worked it out after 20 minutes of fiddling when I noticed that my new laptop would connect to my neighbours unencrypted AP quite happily, but wouldn’t work properly with my WEP enabled AP. I had the same problem with both the builtin Intel 2200BG adapter, and a PRISM based Netgear WG511 card from my old laptop.