Make sure you don’t have any other Modbus device accessing the dongle, like a balancing service - it’s a 1 device connection only (besides the connection you have to FusionSolar cloud). Try a network scan of the dongle IP, see what ports are actually open and configure the app accordingly. Make sure the Modbus-TCP setting in FusionSolar still is set to Enable (restricted or unrestricted depending on what you want to do). Worst case, delete the old device and add it again - at least in my case it’s been very reliable since I figured some of the above out, other than the obvious that the dongle is really slow to communicate with.
Thanks for the tips, I’ll give them a try.
Since I enabled Modbus TCP in the FusionSolar settings myself just a couple days ago, I can’t imagine there being any other device trying to access it.
Just to clarify for myself: when you say dongle IP, that’s the same thing as the inverter IP, right? Or are those two different things? Cause I can only see one Huawei IP in the list of connected devices on my router.
Right, it’s the IP of the dongle - basically the only IP you have to connect to your inverter unless you have an Emma then I’m not sure as I don’t have one. Give it a go, hopefully you’ll find out what’s causing your comms to fail!
