Pulled a 30ft or so run of decent Cat5e from office to attic where I was going to place a WAP54G. My tester shows all green for twisted pairs and crimping and I can connect with my laptop. However, when I connect the WAP54G, it isn't able to pass the DHCP request and thus I never actually connect. When I connect WAP54G to router with 3ft patch, it works fine. What would cause such peculiar behavior?