Hi all, I am using an iPhone 4s and running the new IOS 7.02. My iPhone has been running fine apart from the well discussed bugs we are all experiencing. At my University, we have just switched-on EDUROAM (an education-based Wi-Fi system that allows members to use Wi-Fi in any participating institution). I know my iPhone worked fine on Wi-Fi up until Thursday or Friday of last week but I started to see the '3G' sign at the top of my iPhone around then (before this I was getting 2 or 3 bars on Wi-Fi with the names 'Sky' or 'EDUROAM' next to the bars for Wi-Fi) which I would have expected. However, I am now on '3G' all the time and when I go to and then 'Wi-Fi> or whatever that button is, VO says 'location is improve when Wi-Fi is switched on' or words to that effect. When I try to switch-on Wi-Fi the button to do that is greyed-out and Wi-Fi will not switch-on. At the end of last week, I was looking at all the items on settings to see where IOS 7 has changed. Might I have switched something off which now effects Wi-Fi or is it something else? At work Wi-Fi works fine on my work-station and lap top and my colleagues have 2 or 3 bars on their phones. I am writing this post from home and my lap top works here also and there are four other phones and computers all with operating Wi-Fi networks. Thank you, Steve.