The firmware < 5.0 causes problems with Zigbee. Therefore, firmware version 5.0 (experimental) was released this week.
I have included 2 Tradfri Repeaters and 2 Kadrilj blinds as an experiment. The blinds run over the repeaters.
But before you update to v5.0 you should inform yourself first, because at the moment not all apps are adapted to the new firmware.
