Hi all, We have a 4402 controller (SW ver 126.96.36.199) and need to set up MAC filtering for use with hand held scanners. I have set up a scanner WLAN and set authentication to none and checked the MAC filter box. I can see the scanners in the clients table associated with the scanner WLAN but they are not authenticated. They have IP addresses, but I cannot ping them or ping from them. Do I need to set up the authentication so the scanners can access the network?