Well, not madness, but something definitely weird.
I was wondering if anyone has seen any iPhones getting onto networks they should not be on. I am aware of a situation where an iPhone jumped on a wifi network with WEP and MAC Address filtering enabled.
The thing is, the iPhone only had the WEP key, but the iPhone MAC address hadn’t been authorized and iPhone still was granted an IP address via DHCP.
When I tried my iPhone on the network with the WEP key and but no MAC address authorization, I could not get on.
Another wrinkle is that the successful iPhone had been synched to a Mac laptop that was previously allowed on that network. Could that be it?