sql ldap simultaneous-use

[mcury]

Hi, I'm new to freeradius, currently trying to enforce simultaneous-use = 1 in my wireless network but it is not working.
unifi access point > freeradius > samba-ad-dc

mysql> SELECT COUNT(*) FROM radacct WHERE username = 'vanessa' AND acctstoptime
IS NULL;
+----------+
| COUNT(*) |
+----------+
|        2 |
+----------+
1 row in set (0.00 sec)

I'm using LDAP for authentication through post-auth section in sites-available/default file using Unlang and its working perfectly.

(11)     if (LDAP-Group == "wifi_users" && NAS-IP-Address == "172.16.200.3")  -> TRUE
(11)     if (LDAP-Group == "wifi_users" && NAS-IP-Address == "172.16.200.3")  {
(11)       update {
(11)         control:Simultaneous-Use := 1
(11)         reply:Class := 0x776966695f7573657273
(11)       } # update = noop
(11)       [noop] = noop
(11)     } # if (LDAP-Group == "wifi_users" && NAS-IP-Address == "172.16.200.3")  = noop
(11)     ... skipping elsif: Preceding "if" was taken
(11)   } # post-auth = ok
(11) Sent Access-Accept Id 77 from 192.168.255.241:1812 to 172.16.200.3:38173 length 187

LDAP attribute map as per below:
mods-available/ldap:
update {
...
                control:Simultaneous-Use        += 'radiusSimultaneousUse = 1'

sql is included inside session { section as per documentation.

Any tips, perhaps I forgot something?
Thanks in advance