intermittent problems with public hotspots

Hi I got a couple problems that I think may have more to do with the settings on my laptop than any 802.11x protocol bugs :

In short, If, once you connect to a hotspot, what stops you from accessing http, mail, or both?

e.g. in the dubai business lounge at the international airport I could connect to the AP (hotspot) but could not access mail, or the web. At other places like Mornington Maccas I could use Outlook but not IE, and vice versa at Mnt Martha.

Am using XP on a brand new laptop, and have the latest updates for the centrino chip etc.

Regards Henry

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Dwiz
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