EAP-TLS not working on WinXP client, but does work on W2k?

[jasonhumes]

Hi

So I've got EAP-TLS setup using a W2K IAS server as RADIUS, W2K certificate server and cisco 1100 APs. I've got computer certs on four notebooks of which 2 are W2k and the other two are XP. On the W2k PCs I am able to pop in my wireless 350 card and get an IP before logging in (as seen via the dhcp server) and then once logged in, the user cert is used to further authenticate and remain connected to the network (as seen via the IAS logs). Yet when I try to pop in my wireless card on the XP PCs, I get no IP address and nothing ever shows up in the IAS logs...the 1100 ap says that its associated but nothing more. Does anyone have any ideas. Thanks

Jason

[paddyxdoyle]

Jason,

Can you authenticate from the XP clients using LEAP or something other then EAP-TLS?

If not i would look at upgrading the 350 card drivers on the XP machines to the latest.

I have had problems before using the cardbus pcmcia adapters on XP, when i installed the latest drivers it worked.

Let me know how you get on?

Rgds,

Paddy