How to configure WLC to send accounting message to Radius Server

[cisco]

Can anyone help me how to troubleshoot and configure a WLC to send accounting message to NPS Radius Server? I managed to authenticate my wireless to NPS Radius server and now I need also send accounting so I can set-up the NPS radius server to forward it to our firewall for Single-Sign-On.

[cisco · Accepted solution]

Found the solutions, need 2 steps.

1. add Accounting server at Security > Radius > Accounting

2. At WLAN, Security > AAA servers > Enabled Accounting Servers