Cannot connect from WinXP via D-LINK DI-624 to Airport Express

Question

Had Verizon FIoS installed yesterday which came with a D-LINK DI-624 Wireless Router. Before this I had a Linksys WRT54G. With the Linksys configuration, I was able to update my Airport Express (2 of them) and able to connect ITunes to play music.
With the D-LINK, I use the same procedure to update the AX, but it will still does not connect. I have updated the firmware in the AX to 6.3 and updated Airport ADMIN to 4.2.
Just looking for some help to get the AX configured correctly.

Answer 1

With the D-LINK, I use the same procedure to update
the AX, but it will still does not connect. I have
updated the firmware in the AX to 6.3 and updated
Airport ADMIN to 4.2.
Are you using WEP?
Even with what seems to be the same password, you may find that the HEX key has in fact changed.
One of the problems with WEP is that the actual standard relies on a 10 character HEX key for 40bit WEP and a 26 character HEX key for 128bit WEP.
In order to make things easier for people, vendors use certain algorithms to convert simple alphanumeric passwords (or passphrases) into HEX keys, thus enabling people to use simple memorable WEP password rather than lengthy HEX keys.
The problem is that different vendors use different algorithms to generate the HEX key and therefore a ASCII password on an AEBS will be hashed differently on a Netgear client and vice versa.
One thing is a 13 character 128 bit WEP password will be hashed by all vendors in the same way (if you use 40bit WEP then a 5 character password is required).
Though sometimes not even that works and the HEX key must be used regardless.
AirPort: Joining an encrypted wireless network
http://docs.info.apple.com/article.html?artnum=106424
Choosing a password for networks that use Wired Equivalent Privacy (WEP)
http://docs.info.apple.com/article.html?artnum=108058
iFelix