The DECT 300 radiator controller (predecessor) wor...

The DECT 300 radiator controller (predecessor) worked WITHOUT interruptions to the Fritz BOX. This new radiator controller DECT 301 constantly loses the radio connection to the Fritz BOX. AVM always gives you answers like "Maybe the connection from Fritz DECT 301 to Fritz BOX is not enough" Although I wrote that the box and the heater :-) are in the same place as before with the DECT 300. Also none 10 meters away. The crashes of the DECT 301 were also too numerous here. What I do not like is that changes are only sent to the DECT radiator controller every 15 minutes and so it is not recognizable on the way when the heating has now switched on. I would like to turn on the heating on the go and turn it off shortly before arrival. Unfortunately, this is not possible because you do not know when the 15 minute connection to the Fritz DECT radiator controller takes place. This means that the heating is still on when you arrive, or off too soon. Unfortunately there is also no PUSH mail that e.g. the DECT radiator controller has now switched on or off. For this, the PUSH mail works that the connection from the Fritz BOX to the DECT radiator controller 301 is interrupted, CONTINUOUSLY AND WITHOUT PROBLEMS :-) Switching on the DECT 301 while on the move is no longer possible, because you only have to use the DECT again from home Radiator controller 301 must connect to the Fritz Box. The APP for iOS MyFritz for setting the radiator controller is also a disaster. The plus and minus for the degree setting totally small, often no reaction of the button. The product DECT 301 cannot be used for this money.