Windows Phone 7.1 sdk DeviceNetworkInformation.NetworkAvailabilityChanged not firing
I am using this [sample][1] to get started with Windows phone 7.1 sdk. 
I use a button under Wi-Fi status to enable/disable it. On button click I start the ConnectionSettingsTask to change the status. I change the status. After that if I come back to app screen I don't see status updated in my application. Moreover I did not see NetworkAvailabilityChanged event firing in debug mode. 

What could be the reason?


  [1]: http://www.jeffblankenburg.com/2011/11/10/31-days-of-mango-day-10-network-information/
Windows Phone 7.1 sdk DeviceNetworkInformation.NetworkAvailabilityChanged not firing
===

I am using this [sample][1] to get started with Windows phone 7.1 sdk. 
I use a button under Wi-Fi status to enable/disable it. On button click I start the ConnectionSettingsTask to change the status. I change the status. After that if I come back to app screen I don't see status updated in my application. Moreover I did not see NetworkAvailabilityChanged event firing in debug mode. 

What could be the reason?


  [1]: http://www.jeffblankenburg.com/2011/11/10/31-days-of-mango-day-10-network-information/