i am having problem in 802.1x authenticactión with user who has username pzuñiga(letter ñ). The ASC dont acept the letter "ñ" does someone kown if this has a solutión or when i can found an official document from cisco.
Do you get the same errors when you use the format above or does it pass authentication? There have been a few AD related bugs fixed after patch 3, I would strongly suggest installing this patch to see if the issue is resolved before opening a TAC case.
What version of ACS are you using? There is a bug that is fixed in ACS 5.3 -
MSCHAP authentication with UTF8 SAM & NETBIOS did not work against AD in Centrify configuration. This problem is resolved now.