I am trying to put a new Inspiron 600m (with a Dell 1350 802.11g/b card) on my existing Belkin access point using 128 bit WEP.  I've always used a passphrase with the existing computers, but on the 600m I only get a field entry for a "Network Key"

 

I get this when using the Dell wireless LAN utility and doing a "Configure" of the available network. When I enter the existing passphrase, I get the error that "the network password needs to be 40bits or 104 bits which can be entered as 5 or 13 ascii characters. 

 

Am I looking at the wrong place here - is there somewhere where I can configure this with a non-fixed-length passphrase or do I need to change the passphrase on my existing access point to confirm to the 5/13 ascii character length.

 

Thanks in advance,

ChipO