Spotify often stops playing in Spotify Connect, saying "Press Play"

[Rene101]

My Question or Issue (NL)

Recently I bought 2 digital tuners (TechniSat 101 IR) in my house on the same network (XS4ALL/VDSL), with Spotify Connect built in. On my Samsung Galaxy S9 (Android 9) and my wifes' S10 I have installed the apps Technisat Connect and Spotify (premium, family, 2 users). Often sound stops, the TechniSat display in Spotify mode saying "Press Play". But press play doesn't give any action; only a reset to factory settings does work. Spotify version dd. 22-07-2019. What could be the problem??  Please help, while playing & paying Spotify this way is hopeless!!