Today my WSS not working and it complain that the Client Certificate was not valid. After checked and confirm the client certificate I used was the correct one, which one the only possible was the cert are revoked. Without access to the server which issue the cert, I opt for alternative way of solving this. After some searching below is what can be done to disable the checking for Revoked Certificate for your IIS.
This is a registry hack, used it at your own risk.
DefaultSslCertCheckMode = 1