Trying post again (hopefully html email turned off this time). If someone knows how to delete a previous/duplicate post let me know.: I've been running FR for a while w/ out issue. Windows 8, however fails, when using auto-config (selecting the network and letting Windows figure out supplicant settings). I believe it's failing b/c of: "[mschap] FAILED: MS-CHAP2-Response is incorrect" This only happens on Windows 8 "auto-configuration" of it's 802.1x supplicant. In other words, if I manually add the network, selecting only "wpa2-enterprise", it works. It also works on OSX, Linux, Android and every other version of Windows, using 'autoconfiguration'...ie I do not need to manually configure the supplicant. I've debugged my wireless lan controller, but nothing interesting (I can attach if requested). It shows the EAP messages back/forth endinig up with processing the Access-Reject packet. Like many environments, I'm doing PEAP, with an OpenLDAP directory, though for this test the user is local. (test user is 'steve') I've got VM's of fresh-installed Win8 & Win7, passing same USB wireless NIC & same driver version. As previously mentioned, Win7 works with no manual supplicant configuration. I've included the -X at the bottom of the win7 auth. I do not believe this to be a FR issue, but I am wondering if anyone else has seen this. We are a large campus with ~30K auth's/day, though I'm concerned that Win8 is new enough that we havn't had any complaints yet. dpkg -l | grep freerad ii freeradius 2.1.12+dfsg-1.1 amd64 high-performance and highly configurable RADIUS server ii freeradius-common 2.1.12+dfsg-1.1 all FreeRADIUS common files ii freeradius-ldap 2.1.12+dfsg-1.1 amd64 LDAP module for FreeRADIUS server ii freeradius-utils 2.1.12+dfsg-1.1 amd64 FreeRADIUS client utilities ii libfreeradius2 2.1.12+dfsg-1.1 amd64 FreeRADIUS shared library Debugs at pastebin (too large): http://pastebin.com/gXhwSzZb