It's been a few months but we reloaded XP (the one without SP1,2,3) and then hooked up via Ethernet to get all the updates to Windows. Yes we had all the Dell drivers and Dell's QuickSet (too many didn't know about that!) but no WPA2.
What was it? The network wifi driver didn't support WPA2. So that was that.
OK you say it connected at your WPA2?
There are other reasons such as someone blocking MAC addresses and more. Be sure to have Windows forget ALL prior WiFi connections.
So this is a bit of an interesting one. I recently replaced the modem and router combination at my parents house with theTP-LINK modem. I have set this up successfully using WPA-PSK2 key and my android phone, my mum's laptop, my sister's android phone and my dad's blackberry can all connect to the network with no issues.
The problem arises when I try and connect my Dad's Windows XP laptop to the network. It is running SP3 and can see the network with great strength but when I enter the key and connect it just refreshes the network list and then shows the network which I try and connect to again but a dialog just pops up saying Windows is trying to connect to this network.
I originally thought the issue was with the WPA-PSK2 security setting so I took his laptop to my house to test and tried connecting to my D-Link router-modem which has WPA-PSK2 security as well and it connected straight away with no problems.
This now makes me believe through the process of elimination that the issue is with the network and the router at my parents house. I have tried redoing setup multiple times with no luck.
I am looking for some help with this issue as it is driving me nuts.