Hangjun He wrote: > If I select EAP-TTLS + use only my certificate for auth will cause > segmentation fault. Others seems OK.
Which version of FreeRADIUS are you using? Can you put the certificates on a web page where others can test them? See also doc/bugs Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html

