Homeassistant - KNX bus did not respond in time

[farmio (Matthias Alphart)]

Hi !
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@Crackeronkelz

Can not process <Telegram direction=“Incoming” source_address=“1.1.29” destination_address=“1/3/153” payload=“<GroupValueResponse value=”" />" data=“Switch.OFF (DPTSwitch)” /> for Spot Balkon Schlafzimmer - Brightness: <CouldNotParseTelegram description=“Payload invalid” payload=“”/>

This means something (1.1.29) is sending a DPT 1 payload for the GA you configured as brightness. Either your yaml configuration, or ETS GA assignment is wrong here.

The other error may be caused by missing read-flags or, most likely, line couplers or routers with inaccurate filter tables.
Maybe share a screenshot of your topology including the interface HA is using.