KIS detects change in security as new network

Recently upgraded a wireless network security from WEP to WPA. This went fine and the machines could still access the Internet etc. However later it was realised that the wireless connected computers could not longer communicate with the wired computers on network. This was traced to Kaspersky Internet Security on the wireless computers. Even though the SSID of the wireless network had not changed (and previously set to local network for the firewall) KIS had detected the change in security as a new network this had been added and the default for all new networks was Public – hence the problem. Two networks with the same SSID showed in KIS settings – one disconnected and Local and one connected and public. Deleted the old disconnected one and change the new one to Local and all works fine.