We have two Multiplus 24/5000 Master and Slave setup both Inverters are running 26xxxxx firmware, we just installed a Venus GX and as soon as we plug in the Multiplus Inverter to the GX the Inverter shuts down, we have left everything else unplugged for the purpose of diagnostics, I can see that other people have had this problem but I can't see what they have done to resolve the problem, I have tried different cables to see if I had a faulty cable, has anybody got a solution to this problem please?