My Xbox 360 can't join my wireless network

Question

I have an Apple wireless network but I can't get my Xbox to resolve an IP address when it tries to join the network. Other devices join the network with no problems. I've even got my Xbox to join my neighbours Apple wireless network. There must be some DHCP setting I need to change.

Answer 1

Yes, using WEP.
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.
Choosing a password for networks that use Wired Equivalent Privacy (WEP)
http://docs.info.apple.com/article.html?artnum=108058
The Xbox can log on, just can't resolve an IP
It is probably able to see the network, but is failing to authenticate which means it won't be assigned an IP address.
iFelix