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NAC 4.9.3 issue: authentication and VLAN changing

Hello i have an issue with NAC 4.9.3 installed on appliance 3355,

This is a brief of my configuration :

- L3 out of band

-ntp synchronized

-NAC server added to the CAM

-CAM certificat added to the CAS trusted root certificat and verse versa

-certificat created by the CAS untrusted ip address

- a 2950 Switch added to the CAM

- a port profile assigned to the port

- lunch the verify option on a port assigned the profile work succefully

- static route to the guest VLAN added

- NTP synchronized

-configuring guest and employee roles

-create a local user using local database

-Use the untrusted ip as discovery host

- a MAC address added to the filter list with the employee role, work fine and that port will be in the apropriate role

The issue :

The Web agent is note working as expected, after entring the right or flase credential the web page load a few second and nothing happen, it keep showig the same page

the VLAN is not changed accoring to the user role

from the nac agent entring the right or flase credential will show full access to network window for a second and logout without changing the vlan

i try use vlan id and vlan names but the same result

need help please and thanks.

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