ok now I have a verified case where both an OWL CM180i and the gateway/sensor ? stopped communicating at the same time (12am) and started again at 17pm... both !
There's been no home activity in the between, and I already observed that (what I mentionned above...) a week ago.
What those have in common ? sensor and gateway are close together, as is the rfxcom, the CM180i (I have two) are two stairs below, but only one was not reporting... (last time it was both)
I've seen in the RFM12/b there is a sniffer to see if there is a canal collision, here we are on different frequency ranges, why would so happen ?