We have a LAB running with a basic dot1x setup for NAC and also a very basic AD setup.
I created a few users and integrated the LDAP connection with nac successfully. This all works just fine on MAC based solutions. I can also successfully connect on the wireless network using MAC, Iphone and windows clients.
The problem i am facing is when i connect through a switchport (cable) This works just fine for my mac, altough DHCP takes 20-30 seconds when connection for the first time with dot1x (anyone got any tip on why for this one?)
However, when connecting a Windows machine to a port i do get the login prompt for dot1x (after some fiddling with the adapter settings) but it fails to connect to the network. The response on my NAC is:
Rejected NTLM authentication
eap_peap: We sent a success, but the client did not agree eap: Failed continuing EAP PEAP (25) session. EAP sub-module failed
I can not find any information on this, thus i am asking anyone's help first before creating a GTAC ticket. Anyone here whom has seen the same issues?