Day before yesterday out of the blue my CCGX showed the Multiplus as OFF with no usage data on AC Loads side.
I did the following
Upgraded both CCGX and MP to latest firmware
Power cycled both, multiple times including turning off the MP at the DC source
Verified that I can talk to the MP via my MK3, both direct to MP and via the second port on the CCGX while the first port is connect to the MP (read about that in another post)
Any other suggestions?