Rooms stat and trv comms.

[Ciaran]

Morning all.

Quick question.

In one of my rooms I have a Wiser room stat and three Wiser TRVs, all designated "kitchen".

I am presuming that when the room is set up this way that each TRV will communicate directly with the room stat, and that, in turn, the room stat will communicate directly with the Hub. Therefore, the distance from the Hub, as regards the TRVs is irrelevant?

The reason I ask is that the last rad is quite far from the Hub, through thick walls etc, and loses signal...but then room stat is maintaining a  signal. The TRVs are close enough to the room stat...why would the last rad lose signal?

Thanks in advance and happy Christmas.