It is solved! After latest app-update (1.4.9) this issue became clear. The first M5, acting as router, was blocking the Chromecast from network traffic. With the updated app, the blocking could be...
Hi matt and thanks for the reply 1. SSID is just letters, nothing strange 2. Looking forward to the web-interface 3. This I probably misinterpreted when goofing around. Nothing confirmed. I also...