I've never had any issues with WiFi on my BlackBerry 8320 until recently and not sure what seems to be the cause of this issue. Lately when my WiFi is turned on the BlackBerry will stop sending/receiving emails and pin messages. I can't launch the browser either. When I turn the WiFi off emails and pin messages come through and messages I attempted to send earlier will then all go through. In my network options I have Mobile Network preferred and yet when I am at home or work and I turn on my WiFi all is fine then after maybe 3-5 minutes all connectivity on the BlackBerry will cease. I have quit using my WiFi as of late but would like to see if I can correct the issue. If anyone has any advice I sure would appreciate it. Thanks.