I installed a new Cerbo GX connected to a SmartSolar Mttp 75/15 and connected it to VRM. It was reporting nicely until I upgraded to 2.66. After the update, I received no data to VRM and was unable to connect via Remote Console. I reverted back to 2.51 and it started reporting again. This same thing happened on another Cerbo GX +SmartSolar MPPT I set up a few days prior.