I have two installations using a Power Expander and 26D receivers. They are both exactly the same. One the one I get telemetry on my Core. On the other one I get it some times and some times not. I have checked all the connections but cannot find any problem.
I am using the P2-Bus on both installations. What I don't understand is how the telemetry work with the Power Expander - there is no TELE connection.