Vista, Otlook 2007 and Windows email. Cant download email when wir

As the subject says, I have all 3. When I am away on my laptop using a non
secure wireless connection I can not receive emails.
It is not the provider of the wireless or my ISP. I know becasue I also have
XP on a different but same laptop type (an XPS). When I am wireless and have
a WEP connection or have a LAN connection the email works just fine. Becasue
Windows Mail and Outlook 2007 act the same I thin kit is either Vista or a
security bug that is not allowing NAT or something to allow downloading of
emails. I can send just fine.
This is like a similar problem XP had whenit came out. Is there a hotfix for
this?
I mean they cant be THIS dumb and not test this fact especially when it
occurred in XP .....
When I turn my firewall completely off, it doesnt do any good
When I completely unistall the antivirus software and then deactivate
Windows dwfender, phising, etc it STILL does not do any damn good.
I need this fixed ASAP. Please help!!!!!!! Anyone