Due to the non-availability of MultiPlus II, we have been using MultiPlus-II 5kVA GX and are having serious problems with the USB port for multiple USB / VE.Direct devices.
All installations I am referring to now have maximum 2 x MPPT (1 x USB to VE.Direct) and 1 x Energy Meter (1 x USB to RS485).
We are using high quality 30 USD D-Link DUB-H7 hubs with 12V power from an Orion 48-12 DC DC Converter. On a near daily basis, we are having to reboot the GX device because one of the two USB devices disappears.
It has been suggested to me by another installer that this is a nanopi problem. We would appreciate some assistance from Victron in this respect. PS. We did try USB powered hubs and we had the same issue.
We now have 5 installations with this issue and around 3 more going in each week. We have to find a solution.