"Thanks for help. I think so too, but I have no idea how or even if it is possible. The WXPSP2 Client with user authentication is not able to authanticate against the freeradius. There is not even a request arriving on the freeradius. If I toggle to "Identify with ComputerInformation if possible" there is at least a request arriving at the radiusserver. It takes some time, but it works. After the Authentication with computer Information, its not possible to authenticate a second time with the user information. How do i have to configure the client correctly to realize userauthentication? Or do I need to reconfigure the server?" I know it sounds stupid, but you have set up the correct radius type for port based authentication ? There's two on the HP procurves, Radius-CHAP Radius-EAP Do show authentication Via the CLI and it should give you something looking like this. * *Status and Counters - Authentication Information Login Attempts : 3 Respect Privilege : Enabled | Login Login Enable Enable Access Task | Primary Secondary Primary Secondary ----------- + ---------- ---------- ---------- ---------- Console | Radius Local Radius Local Telnet | Local None Local None Port-Access | EapRadius Webui | Local None Local None SSH | Radius Local Radius Local Web-Auth | ChapRadius MAC-Auth | ChapRadius Need to make sure Port-Access is set to EapRadius, else the switch won't pass the eap messages through correctly. If it's on Chap use config aaa authentication port-access eap-radius write mem --- Arran