Hello,
i implemented now the recommended solution and it works perfectly:
- set up a fresh raspberry os and fresh deCONZ
- buying 14 zigbee repeater (Tuya Signal Repeater Zigbee 3.0) together with the phoscon stick i managed to connect to 180 Sensors (repairing them). I know it is not the ratio (end-sensor/repeater) you recommended was 5:1 but as it costs 10 EUR per repeater i tried to skip costs a bit and as long as it works…
- I fought my fight with the new raspbian os (bookworm) and chrome browser - by changing to firefox. which released me from bad performance of the phoscon app in chrome.
So I would close this post - thank you very very very much for the support. It helped me a lot !!!