Read the REST of the debug output to see what's going on.
Is the NAS sending accounting packets? That is REQUIRED for Simultaneous-Use to work.
Yes, the NAS is sending accounting packets. rad_recv: Accounting-Request packet from host xxx.xxx.xxx.xxx port 58245, id=96, length=161 Acct-Session-Id = "00000013-00000008" Acct-Status-Type = Start Acct-Authentic = RADIUS User-Name = "myuser" NAS-IP-Address = 172.19.13.1 NAS-Identifier = "24a43cb0fbad" NAS-Port = 0 Called-Station-Id = "24-A4-3C-B2-FB-AD:myssid" Calling-Station-Id = "68-94-23-92-31-83" NAS-Port-Type = Wireless-802.11 Connect-Info = "CONNECT 0Mbps 802.11b" # Executing section preacct from file /etc/freeradius/sites-enabled/default +group preacct { ++[preprocess] = ok ++update request { expand: %{Acct-Session-Time} -> ... expanding second conditional expand: %{Acct-Delay-Time} -> ... expanding second conditional expand: %l - %{%{Acct-Session-Time}:-0} - %{%{Acct-Delay-Time}:-0} -> 1431954276 - 0 - 0 expand: %{expr: %l - %{%{Acct-Session-Time}:-0} - %{%{Acct-Delay-Time}:-0}} -> 1431954276 ++} # update request = noop [acct_unique] Hashing 'NAS-Port = 0,NAS-Identifier = "24a43cb0fbad",NAS-IP-Address = 172.19.13.1,Acct-Session-Id = "00000013-00000008",User-Name = "myuser"' [acct_unique] Acct-Unique-Session-ID = "75cf168fc31d9772". ++[acct_unique] = ok To be sure, I analyzed the mysql radacct table and noticed that there are records for the user who is logged in. I watched the rest of the debug file and did not notice anything unusual. The only thing that caught my attention is the message below appears a few times in debug. " WARNING: Empty pre-proxy section. Using default return values." This will be the cause of my problem? Best Regards, Renato L. Sousa