If you can access the internet fine using PIE (Pocket Internet Explorer) on your Windows Mobile device over Edge or 3G, but when you switch to Wifi Internet Explorer always times out (It says “Loading…”) – then you are probably dealing with the dreaded “hard coded proxy” problem. In this situation you have Wifi wireless enabled and Opera and other internet applications work fine – but PIE will not work.
The issue is that PIE is trying to connect to the internet via a proxy, however if you are using WiFi there is no need for this and the proxy server can not identify you since you are not on AT&T’s (Cingular’s) network.
The default setting that forces the proxy to be used is:
Do a soft reset on your device and PIE should now be able to access the internet again!