I've been screen sharing between my LG Smart TV and Surface 3 (windows 10) for the past year, but it has just stopped working with 'unable to connect' message appearing on TV and similar notification on desktop. After several restarts, removing and re-adding devices etc I came to notice that each time I attempt to connect, a Norton Message appears stating: - 'connected to unsecure network' & looking into the security history it has under Firewall category: - 'IP Address has disappeared from adapter Microsoft Wi-Fi direct virtual adapter....####' I've since tried to add the MAC & IP address of TV to 'Full Trust', but I assume that applies just to the home/pvt network rather than the Wi-Fi direct connection attempted when trying to share. Have searched high and low via forum and google but to no prevail. Appreciate any suggestions to resolve - perhaps it's not a Norton issue, but is quite a coincidence. Thanks.