"Validate server certificate" option is unexpected to check in Wired network (IEEE 802.3) policies in windows XP SP3

Hi All,

I gone through all GPO's forums reg,. this issue i need conclusion on this issue here is my scenario for Wired Network Client Access GPO(PEAP).

GPO-Server: Windows server 2008 R2

Clients: XP SP3,Windows 7

Policy:  Wired network (IEEE 802.3) policy

Authentication Method: PEAP(no need of CA server)

 i create policy and deployed to my test machines, here for windows 7 machines the policy applied successfully but for windows XP machines am getting 

"Validate server certificate" option is unexpected, i verified in server there its unchecked.

  I just gone through with the below URL to trouble shoot

http://blogs.technet.com/b/asiasupp/archive/2010/11/03/validate-server-certificate-option-is-unexpected-to-check-in-wired-network-ieee-802-3-policies.aspx

Is this policy will not work in server 2008 R2 and Windows XPSP3 environment?

Could any one help on this!

Thanks Kalyan