My parents use a Formuler Z11 Pro Max to watch TV in the living room. In the bedroom they use a Formuler Z10.
The image of the Z11 Pro Max regularly froze. The only way to watch again is to turn the device off and on again. They have also already swapped both devices (Z11 to bedroom, Z10 to living room) but this also offers no relief.
I use the same setup in another place of residence. Same internet provider, same devices (Z11 Pro Max and Z10) and same IPTV provider. However, we never have any problems. What could that be?