I get this in event viewer logs. the IAS server denied all the users. cant find much help related to the error code from Google. I've enable FIPS as suggested in 1 technet forum but no luck.
Event Type: Warning
Event Source: IAS
Event Category: None
Event ID: 2
Date: 9/16/2010
Time: 10:16:58 AM
User: N/A
Computer: EGCRLS02
Description:
User hattinghh@XXX.com was denied access.
Fully-Qualified-User-Name = XX.XXXX.com/XXX/Users/Operations/Hendrik Hattingh
NAS-IP-Address = XXx.xxx.xxx.xxx
NAS-Identifier = EGCRLAP11
Called-Station-Identifier = 001e.7aaa.d520
Calling-Station-Identifier = 001b.776d.e198
Client-Friendly-Name = EGCRLAP11
Client-IP-Address = xxx.xxx.xxx.xxx
NAS-Port-Type = Wireless - IEEE 802.11
NAS-Port = 18906
Proxy-Policy-Name = Use Windows authentication for all users
Authentication-Provider = Windows
Authentication-Server = <undetermined>
Policy-Name = BAT Wireless PKI Authentication Policy
Authentication-Type = EAP
EAP-Type = Smart Card or other certificate
Reason-Code = 269
Reason = The client and server cannot communicate, because they do not possess a common algorithm.