i have a two old victron multiplus 24/3000/70. i want to configure to work in parallel. The chipset is 1812144.hex, when i use ve bus quick configure software the multiplus will not start for the Mrk2-usb when connected to the pc. So no chance to configure master and slave. can anyone give some suggestions . using the latest ve quick configure, could this be the issue, if yes, where can i get hold of older software version to work with my MultiPlus