I have a newly deployed WCS/WLC (versions 126.96.36.199 and 188.8.131.52 respectively) and have set up a guest WLAN that requires authentication via guest accounts created via the lobby ambassador. This morning I did a test to see if a single account can be used by more than 1 WLAN client, and was suprised to see that it could be!
I know that there is a setting in the WLC (Security=>User Login Policies=>Max number of concurrent logins for a single user name) which is currently set to 0. My understanding is that the 0 value indicates unlimited concurrent logins. If I change this number to a non-zero value (say, 1) will that affect both 'regular' users that are authenticated via RADIUS to the 'private' side WLANs as well as the guest users? I.E. what are the ramifications of changing this setting?