Problems with HDMI & Fire Stick

Hello everybody,
I have the following problem: My Amazon Fire Stick regularly loses WiFi after about 10 minutes, although all other devices in the room have normal reception. The projector also has normal WLAN reception, only the HDMI input, in which the stick is inserted, seems to cause problems here. I have to briefly de-energize the stick, then it has reception again for 10 minutes. The stick works perfectly in my TV, it only causes problems in the HDMI input of the Pico Max. What could that be?

Greetings
Martin

False alarm, the problem is not due to the Pico Max! I think I found the bug. Reset the Fire Stick to factory settings … Now it works again.