It does not consider an issue resolved.    Is it a neat solution? No need to have another AP setup just to solve this issue?\       @bradstix wrote: As the Sagemcom Fast 5866T 5G modem is unable to have AP Isolation turned off in it's settings - the solution for me here was to just connect another router with the same SSID and PW that all my devices recognised, and connected the new TP Link router from the LAN of the Sagemcom to the WAN of the TP Link. The TP Link had AP Isolation turned off as default in the settings, so all my Google Chromecast, Android TV, Home Mini were all accessible to cast to from smart phones for YouTube, Google Photos, Spotify etc etc   The router I have connected is the TP Link Archer C24 AC750 model.   A big thank you to @BasilDV for all the support in investigating the Sagemcom settings!   ... View more