Hmm, there's been issues with the WiFi set to Auto that people have had with it connecting, but if you have a network connection that is functioning with its current settings then its something else.
Are you using the internal streaming media player or a third party one?
Edit: Okay I just goofed off with it and had the same issue, went into my Wlan settings under Power Options, I changed the setup from Best Battery (or auto if your's is set to it) to Best Performace and it worked imidiately, your phone is killing it because it kills battery power.
Hope that helps
Last edited by 10332007; 6th April 2008 at 08:27 AM.
Reason: Solved for me