When I connect my ipod touch to my home wifi network it asks for the password. Then it shows the circle moving as it's connecting. And then to the left of the network name it will show a check mark to show it is connected. However after about 3 seconds the check mark goes away and it is disconnected from the wifi connection. I have restored all settings including the network settings and I have also connected it to itunes to update the software. Anyone else had this problem or can help me resolve it?