Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3) Here at George Mason University about 2 weeks ago my MBP running 10.7.2 mysteriously started failing to work with the campus wifi. I submitted a ticket and learned that this is widespread and totally unresolved. I find this pretty strange. It isn't an issue with Safari or anything. I grab a DHCP address and get just incredible packet loss, but packets that get through are normal latency. Anyone else experiencing this? We use a log-in server thing for wifi. Could just be idiot admins messing up the settings but it's very strange to only affect lion. My iPhone 4 iOS 5 is fine ------ EDIT: And to make things more weird, when I get home on to my wifi, my networking refuses to work until I reboot my machine. Turning on/off wifi doesn't help, closing all my apps doesn't help.. it's strange, I can `dig` hosts and get their ip's, that's about it. It almost appears to be a vulnerability in OS X 10.7.2 considering that something can have such a significant effect.