Since Dec 1, 2020, HomematicIP (EQ-3) has started to block public IP addresses of Home Assistant installations, if they access the Homematic IP Cloud too often. In this case, the Homematic IP Cloud can only be reached from a cellular network. Further plans to completely block the non-partner apps from the Homematic IP Cloud cannot be ruled out.
Official partners such as Mediola and Smartha are still permitted. The same issue has also been reported for other smart home platforms, like ioBroker, which use different code to access the Homematic IP Cloud.
The Homematic IP Cloud Integration is based on the cloud push principle, by which status updates are transmitted from the cloud to the local installation as an event, so this should not be the problem.
Reducing calls to the cloud might help not to be blocked. The following activities in Home Assistant make calls to the cloud (not complete):
The Homematic Integration, which uses a local CCU or RaspberryMatic, is the recommended alternative that doesn’t require the Homematic IP Cloud.
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