I just tried to use my MacBook with N9's hotspot and it worked. However, a Windows 7 laptop was not able to connect to the Internet. Even though the systems indicates that there is Internet connection for IPv4, I cannot open any web pages. At first I thought this was an issue with Windows devices, as a Windows 8 tablet cannot connect to the hotspot either. But when I try to connect the iPad to the hotspot, it doesn't work either. It behaves just like the Windows 7 laptop, i.e. connects to the hotspot, receives Wifi signal, gets assigned the proper IPv4 address (within the range I have specified in the app), but cannot load any web pages. This is strange because the iPad used to be able to browse the web using the hotspot connection. Can anyone shed some light on this issue?