Hi Guys,
I have a site, in which 3 ES 470 are stacked . I have more than five applications like, VoIP, Data-Admin, Guest-Internet, IPTV, Wireless Acess pionts and CCTV (security cameras) running on these switches . Well few months after the installation the vlans handling the CCTV, failed to give pictures on the screens. When I shifted the CCTV vlan to a stand alone switch, it works, but not on the stack switches.
I dont think there is any problem with the stacking. Or should I reconfigure the stacked switches from the scrach. Well I would be grateful, if someone could help me to sort out this problem, as it has become a serious issue

.
Regards
Gibbs Justin