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I am aving trouble getting ACS 4.2 to sync with domain controller running window 2008, I see the error listed below in the CS AUTH Logs when a user tries to authenticate via Windows external database: CS AUTH Logs: AUTH 05/24/2010 11:08:19 E 2100 49316 0x2 External DB [NTAuthenDLL.dll]: Windows authentication FAILED error 6L Any suggestionsThanks
Hello, Win2008 is supported from ACS ver 4.2 patch 4 onwards, so you need to upgrade your ACS to 4.2(latest patch).ACS 188.8.131.52 cumulative patch for windows can be downloaded from this link,http://www.cisco.com/cgi-bin/tablebuild.pl/acs-win-3des Also ACS is currently not supported on Win2008 R2 (ACS running on win2008 R2)So make sure you are running acs 4.2.0 with latest patch or 4.2.1. Regards,~JGDo rate helpful posts