I use a d-link wireless router to network projectors with no internet access and have always been able to connect and stay connected the the wireless router with my ipod touch. Now that I have the iphone 3g, it connects to the wireless router and then dissapears and 3g shows up instead of the wireless bars. I,m thinking the iphone is always looking for an internet connection, if I go into the wifi settings, there is a checkmark by my network that I want but it does not stay active. Any help would be greatly appreciated.